This document contains a 30 question multiple choice exam on quantitative analysis topics including: measures of central tendency, levels of measurement, probability, sampling, hypothesis testing, and regression analysis. The questions assess understanding of key concepts such as how extreme values impact the mean, requirements for using the median and mode, identifying type I and type II errors, and the appropriate use of statistical tests.
Statisticsassignmentexperts.com is an organisation committed to providing world class education solutions in the subject of Statistics to students across the globe. We specialise in offering a multitude of educational services to students for Statistics, who are studying in various institutes and universities, be it assignments, online tutoring, project work, dissertation/thesis, or exam preparation.
When it comes to information and communication technologies, we employ state-of-the-art and latest tools and technology to connect with students and expert tutors. Students from various countries including the USA, UK, Canada, UAE and Australia have used our services for the past several years to achieve excellence in their academic and professional pursuits. Statisticsassignmentexperts.com works closely with its strong and dynamic team of subject experts to create new models for exchange of information, in consonance with the changing needs of students as well as academic and professional programs.
Res 351 final exam guide 9) In the Southeast, the potato chip market share he...laksminarayanakmpv
9) In the Southeast, the potato chip market share held by the Lays brand is 46%. This is an example of _____.
A. a research question
B. a descriptive hypothesis
C. a relational hypothesis
D. an explanatory hypothesis
Statisticsassignmentexperts.com is an organisation committed to providing world class education solutions in the subject of Statistics to students across the globe. We specialise in offering a multitude of educational services to students for Statistics, who are studying in various institutes and universities, be it assignments, online tutoring, project work, dissertation/thesis, or exam preparation.
When it comes to information and communication technologies, we employ state-of-the-art and latest tools and technology to connect with students and expert tutors. Students from various countries including the USA, UK, Canada, UAE and Australia have used our services for the past several years to achieve excellence in their academic and professional pursuits. Statisticsassignmentexperts.com works closely with its strong and dynamic team of subject experts to create new models for exchange of information, in consonance with the changing needs of students as well as academic and professional programs.
Res 351 final exam guide 9) In the Southeast, the potato chip market share he...laksminarayanakmpv
9) In the Southeast, the potato chip market share held by the Lays brand is 46%. This is an example of _____.
A. a research question
B. a descriptive hypothesis
C. a relational hypothesis
D. an explanatory hypothesis
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
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CrowdTruth for medical relation extraction - WAI talkAnca Dumitrache
I will present the CrowdTruth (http://crowdtruth.org/) approach to performing relation extraction from medical data. CrowdTruth exploits inter-annotator disagreement as a useful signal, allowing us to evaluate data quality, such as ambiguity and vagueness at the sentence level, worker quality, and the quality of the target semantics. I will introduce a workflow for generating gold standard annotations for medical relation extraction through a series of crowdsourcing tasks. Then I will present an evaluation of the crowd data by comparing it with the current gold standard in medical relation extraction. The evaluation is performed by training a relation extraction classifier with both datasets, and comparing the results for F1 measure in a cross-validation experiment.
FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
Like Us - https://www.facebook.com/FellowBuddycom
CrowdTruth for medical relation extraction - WAI talkAnca Dumitrache
I will present the CrowdTruth (http://crowdtruth.org/) approach to performing relation extraction from medical data. CrowdTruth exploits inter-annotator disagreement as a useful signal, allowing us to evaluate data quality, such as ambiguity and vagueness at the sentence level, worker quality, and the quality of the target semantics. I will introduce a workflow for generating gold standard annotations for medical relation extraction through a series of crowdsourcing tasks. Then I will present an evaluation of the crowd data by comparing it with the current gold standard in medical relation extraction. The evaluation is performed by training a relation extraction classifier with both datasets, and comparing the results for F1 measure in a cross-validation experiment.
QNT 351 Final Exam Answers 2015 versionvincenzwhaley
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versioncelestiaorias
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versioncelestiaorias
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versioncelestiaorias
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versioncelestiaorias
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versionmahallbethena
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versioncelestiaorias
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versionmalenasugar
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versionmahallbethena
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers 2015 versionvincenzwhaley
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
QNT 351 Final Exam Answers
1) The main purpose of descriptive statistics is to
A. summarize data in a useful and informative manner
B. make inferences about a population
C. determine if the data adequately represents the population
D. gather or collect data
2) The general process of gathering, organizing, summarizing, analyzing, and interpreting data is called
A. statistics
B. descriptive statistics
C. inferential statistics
D. levels of measurement
3) The performance of personal and business investments is measured as a percentage, return on investment. What type of variable is return on investment?
A. Qualitative
B. Continuous
C. Attribute
D. Discrete
4) What type of variable is the number of robberies reported in your city?
A. Attribute
B. Continuous
C. Discrete
D. Qualitative
5) What level of measurement is the number of auto accidents reported in a given month?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
6) The names of
Welcome to TechSoup New Member Orientation and Q&A (May 2024).pdfTechSoup
In this webinar you will learn how your organization can access TechSoup's wide variety of product discount and donation programs. From hardware to software, we'll give you a tour of the tools available to help your nonprofit with productivity, collaboration, financial management, donor tracking, security, and more.
2024.06.01 Introducing a competency framework for languag learning materials ...Sandy Millin
http://sandymillin.wordpress.com/iateflwebinar2024
Published classroom materials form the basis of syllabuses, drive teacher professional development, and have a potentially huge influence on learners, teachers and education systems. All teachers also create their own materials, whether a few sentences on a blackboard, a highly-structured fully-realised online course, or anything in between. Despite this, the knowledge and skills needed to create effective language learning materials are rarely part of teacher training, and are mostly learnt by trial and error.
Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
Introduction to AI for Nonprofits with Tapp NetworkTechSoup
Dive into the world of AI! Experts Jon Hill and Tareq Monaur will guide you through AI's role in enhancing nonprofit websites and basic marketing strategies, making it easy to understand and apply.
Biological screening of herbal drugs: Introduction and Need for
Phyto-Pharmacological Screening, New Strategies for evaluating
Natural Products, In vitro evaluation techniques for Antioxidants, Antimicrobial and Anticancer drugs. In vivo evaluation techniques
for Anti-inflammatory, Antiulcer, Anticancer, Wound healing, Antidiabetic, Hepatoprotective, Cardio protective, Diuretics and
Antifertility, Toxicity studies as per OECD guidelines
Operation “Blue Star” is the only event in the history of Independent India where the state went into war with its own people. Even after about 40 years it is not clear if it was culmination of states anger over people of the region, a political game of power or start of dictatorial chapter in the democratic setup.
The people of Punjab felt alienated from main stream due to denial of their just demands during a long democratic struggle since independence. As it happen all over the word, it led to militant struggle with great loss of lives of military, police and civilian personnel. Killing of Indira Gandhi and massacre of innocent Sikhs in Delhi and other India cities was also associated with this movement.
Synthetic Fiber Construction in lab .pptxPavel ( NSTU)
Synthetic fiber production is a fascinating and complex field that blends chemistry, engineering, and environmental science. By understanding these aspects, students can gain a comprehensive view of synthetic fiber production, its impact on society and the environment, and the potential for future innovations. Synthetic fibers play a crucial role in modern society, impacting various aspects of daily life, industry, and the environment. ynthetic fibers are integral to modern life, offering a range of benefits from cost-effectiveness and versatility to innovative applications and performance characteristics. While they pose environmental challenges, ongoing research and development aim to create more sustainable and eco-friendly alternatives. Understanding the importance of synthetic fibers helps in appreciating their role in the economy, industry, and daily life, while also emphasizing the need for sustainable practices and innovation.
How to Make a Field invisible in Odoo 17Celine George
It is possible to hide or invisible some fields in odoo. Commonly using “invisible” attribute in the field definition to invisible the fields. This slide will show how to make a field invisible in odoo 17.
Embracing GenAI - A Strategic ImperativePeter Windle
Artificial Intelligence (AI) technologies such as Generative AI, Image Generators and Large Language Models have had a dramatic impact on teaching, learning and assessment over the past 18 months. The most immediate threat AI posed was to Academic Integrity with Higher Education Institutes (HEIs) focusing their efforts on combating the use of GenAI in assessment. Guidelines were developed for staff and students, policies put in place too. Innovative educators have forged paths in the use of Generative AI for teaching, learning and assessments leading to pockets of transformation springing up across HEIs, often with little or no top-down guidance, support or direction.
This Gasta posits a strategic approach to integrating AI into HEIs to prepare staff, students and the curriculum for an evolving world and workplace. We will highlight the advantages of working with these technologies beyond the realm of teaching, learning and assessment by considering prompt engineering skills, industry impact, curriculum changes, and the need for staff upskilling. In contrast, not engaging strategically with Generative AI poses risks, including falling behind peers, missed opportunities and failing to ensure our graduates remain employable. The rapid evolution of AI technologies necessitates a proactive and strategic approach if we are to remain relevant.
Read| The latest issue of The Challenger is here! We are thrilled to announce that our school paper has qualified for the NATIONAL SCHOOLS PRESS CONFERENCE (NSPC) 2024. Thank you for your unwavering support and trust. Dive into the stories that made us stand out!
1. QNT 561 FINAL EXAMS
CLICK HERE TO DOWNLOAD
1) Which of the following measures of central location is affected most by extreme values?
A. Mean
B. Median
C. Mode
D. Geometric mean
2) Which level of measurement is required for the median?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
3) Which level of measurement is required for the mode?
A. Nominal
B. Ordinal
C. Interval
D. Ratio
4) In a set of observations, which measure of central tendency reports the value that occurs most
often?
A. Mean
B. Median
C. Mode
D. Geometric mean
5) The weighted mean is a special case of what?
A. Mean
2. B. Median
C. Mode
D. Geometric mean
6) A sample of 5 companies were examined for changes in their relative market share. The
results showed the following increases and decreases: –5, 10, 10, 5, –10.
A. 8
B. 2
C. -2
D. 6
7) The difference between the sample mean and the population mean is called the
A. margin of error
B. population standard deviation
C. standard error of the mean
D. sampling error
8) A local trade union consists of plumbers and electricians. qnt 561 final exam Classified
according to rank:
Apprentice Journeyman Master Total
Plumbers 25 20 30 75
Electricians 15 40 20 75
40 60 50
A member of the union is selected at random. Given that the person selected is an electrician,
what is the probability that the person is a master?
A. .053
B. .133
C. .500
D. .267
3. QNT561 Final Exam
9) Suppose a population consisted of 20 items. How many different samples of n = 3 are
possible?
A. 6840
B. 1140
C. 20
D. 120
10) The mean and the variance are equal in
A. the normal distribution
B. the binomial distribution
C. the Poisson distribution
D. the hypergeometric distribution
11) In the 1936 Presidential Election Franklin D. Roosevelt defeated Alfred E. Landon in a
landslide vote. A Landon victory had been predicted by the Literary Digest, a magazine that ran
the oldest, largest, and most widely publicized of the polls at the time. The Digest's final
prediction was based on 10 million sample ballots mailed to prospective voters, and 2.3 million
were returned. qnt 561 final exam The sample of voters was drawn from lists of automobile and
telephone owners. Despite the massive size of this sample, it failed to predict a Roosevelt
victory, being off the mark by 19 percentage points. The Digest was wrong because
A. the sample size, although large, was not large enough
B. the right research questions were not asked
C. respondents intentionally lied about their preferred candidate
D. the sample used was not representative of the actual population at the time
12) In a study on the effect of reinforcement on learning from a company online training
program, two experimental treatments are planned: reinforcement given after every learning
module, or reinforcement given after every two learning modules. Reinforcement is
accomplished with the addition of more examples. qnt561 final exam Which one of the
following control groups would serve best in this study?
A. A group that does not read any of the learning modules.
4. B. A group that reads the modules using hardcopy only.
C. A group that reads the learning modules, but does not receive reinforcement.
D. A group that reads the learning modules with random reinforcement.
13) The central limit theorem is important to market researchers because it states that as sample
sizes increase, the distribution of the sample ________ collected from consumers on any topic of
interest being researched approaches the normal distribution.
A. medians
B. means
C. standard deviations
D. variances
QNT 561 Final Exam
14) To find confidence intervals for the mean of a normal distribution, the t distribution is
usually used in practical applications instead of the standard normal distribution because
A. the mean of the population is not known
B. the t distribution is more effective
C. the variance of the population is usually not known
D. the sample size is not known
15) We wish to develop a confidence interval for the population mean. The population follows
the normal distribution, the standard deviation of the population is 3, and we have a sample of 10
observations. We decide to use the 90% level of confidence. qnt 561 final exam The appropriate
value of to represent the level of confidence is
A. z=1.65
B. z=1.96
C. z=1.833
D. z=1.812
16) Which of the following is a correct statement about a probability?
A. It may range from 0 to 1.
5. B. It may assume negative values.
C. It may be greater than 1.
D. It cannot be reported to more than 1 decimal place.
17) The special rule of addition is used to combine
A. independent events
B. mutually exclusive events
C. events that total more than one
D. events based on subjective probabilities
18) We use the general rule of multiplication to combine
A. events that are not independent
B. mutually exclusive events
C. events that total more than 1.00
D. events based on subjective probabilities
19) A discrete variable
A. is an example of a qualitative variable
B. can assume only whole number values
C. can assume only certain clearly separated values
D. cannot be negative
20) A nominal scale variable
A. usually involves ranking.
B. cannot assume negative values
C. has meaningful zero point
D. is usually based on counting
21) The ratio scale of measurement
A. usually the result of counting something
6. B. has meaningful zero point
C. may assume negative values
D. cannot have more than two categories
22) In the world of market research, the use of a questionnaire often plays a vital role in gaining
useful business intelligence because
A. it is a structured technique to collect secondary data
B. it represents a way to ask anything you want from respondents and receive valid information
C. it does not need to be tested
D. it can be used in conjunction with other techniques such as field interviews and focus groups
to maximize data input
23) A Type I error is
A. the correct decision
B. a value determined from the test statistic
C. rejecting the null hypothesis when it is true
D. accepting the null hypothesis when it is false
24) In a two-sample test of means for independent samples, we use the z distribution when
A. the population standard deviations are equal
B. both populations have at least 4,000 observations
C. both population standard deviations are known
D. nB and n(1-B) are both greater than 5
25) Which of the following is a requirement for a two-sample test of proportions?
A. The population standard deviations are equal.
B. Both populations are positively skewed.
C. Both samples are at least 30.
D. nB and n(1-B) are both greater than 5.
7. 26) Bob is interested in opening a candy store in his town. He believes that his customers will
spend an average of $75 or more in annual purchases (the alternative hypothesis). Bob hires a
consultant to test this belief. qnt 561 final exam mcq's The consultant tested this conjecture on a
sample of 100 customers and found the p-value for the test statistic satisfied p > .25, then
A. you would not reject the null hypothesis
B. you would reject the null hypothesis for alpha= .01
C. you would reject the null hypothesis for alpha= .05
D. you would reject the null hypothesis for alpha= .10
27) A carefully designed business experiment has just been concluded. Unfortunately, use of
alpha = .05 indicated no significant differences among four treatments. What useful information
can you supply future investigators when you report on this experiment?
A. The means are different but their variances are the same.
B. The estimated variance (and its df) can be useful to future investigators.
C. Pair-wise tests can be conducted to show significant differences.
D. Significant differences can be reported by changing the type I error rate from .05 to .10, .20,
or whatever is needed to declare significance.
28) A correlation matrix
A. shows all simple coefficients of correlation between variables
B. shows only correlations that are zero
C. shoes the correlations that are positive
D. shows only the correlations that are statistically significant
29) The multiple standard error of estimate is
A. the measure of variability to the prediction
B. negative when one of the net regression coefficients is zero
C. found by calculating SSR/SS total
D. the measure of accuracy of the prediction
30) A dummy variable or indicator variable
8. A. may assume only a value of 0 or 1
B. is another term for the dependent variable
C. is a quantitative variable
D. is a variable at a ratio or interval level of measurement