SlideShare a Scribd company logo
1 of 1
Download to read offline
Give a real-world situation or problem; clearly identify the independent and dependent variables;
give an explanation of whether an independent-samples or related-samples t test is most
appropriate; the statistical null and alternative hypotheses; and describe what information the
effect size would tell you that the probability value would not tell you, and your hypothetical
results using correct APA format.
Solution
T-Test Example The two sample t-test simply tests whether or not two independent
populations have different mean values on some measure. For example, we might have a
research hypothesis that rich people have a different quality of life than poor people. We give a
questionnaire that measures quality of life to a random sample of rich people and a random
sample of poor people. The null hypothesis, which is assumed to be true until proven wrong, is
that there is really no difference between these two populations. We gather some sample data
and observe that the two groups have different average scores. But does this represent a real
difference between the two populations, or just a chance difference in our samples? T-Test
Statistic The statistics t-test allows us to answer this question by using the t-test statistic to
determine a p-value that indicates how likely we could have gotten these results by chance. By
convention, if there is less than 5% chance of getting the observed differences by chance, we
reject the null hypothesis and say we found a statistically significant difference between the two
groups. See Statistical Data Analysis for more information about hypothesis testing.
http://faculty.vassar.edu/lowry/ch12pt1.html

More Related Content

Similar to Give a real-world situation or problem; clearly identify the indepen.pdf

Class24 chi squaretestofindependenceposthoc
Class24 chi squaretestofindependenceposthocClass24 chi squaretestofindependenceposthoc
Class24 chi squaretestofindependenceposthoc
Betynatha Kb
 
Topic Learning TeamNumber of Pages 2 (Double Spaced)Num.docx
Topic Learning TeamNumber of Pages 2 (Double Spaced)Num.docxTopic Learning TeamNumber of Pages 2 (Double Spaced)Num.docx
Topic Learning TeamNumber of Pages 2 (Double Spaced)Num.docx
AASTHA76
 
BUS 308 Week 3 Lecture 1 Examining Differences - Continued.docx
BUS 308 Week 3 Lecture 1 Examining Differences - Continued.docxBUS 308 Week 3 Lecture 1 Examining Differences - Continued.docx
BUS 308 Week 3 Lecture 1 Examining Differences - Continued.docx
curwenmichaela
 
Section 1 Data File DescriptionThe fictional data represents a te.docx
Section 1 Data File DescriptionThe fictional data represents a te.docxSection 1 Data File DescriptionThe fictional data represents a te.docx
Section 1 Data File DescriptionThe fictional data represents a te.docx
bagotjesusa
 

Similar to Give a real-world situation or problem; clearly identify the indepen.pdf (20)

Null hypothesis for a single-sample t-test
Null hypothesis for a single-sample t-test Null hypothesis for a single-sample t-test
Null hypothesis for a single-sample t-test
 
Class24 chi squaretestofindependenceposthoc(1)
Class24 chi squaretestofindependenceposthoc(1)Class24 chi squaretestofindependenceposthoc(1)
Class24 chi squaretestofindependenceposthoc(1)
 
Class24 chi squaretestofindependenceposthoc
Class24 chi squaretestofindependenceposthocClass24 chi squaretestofindependenceposthoc
Class24 chi squaretestofindependenceposthoc
 
Topic Learning TeamNumber of Pages 2 (Double Spaced)Num.docx
Topic Learning TeamNumber of Pages 2 (Double Spaced)Num.docxTopic Learning TeamNumber of Pages 2 (Double Spaced)Num.docx
Topic Learning TeamNumber of Pages 2 (Double Spaced)Num.docx
 
Statistical Significance Tests.pptx
Statistical Significance Tests.pptxStatistical Significance Tests.pptx
Statistical Significance Tests.pptx
 
Interpretation
InterpretationInterpretation
Interpretation
 
Berd 5-6
Berd 5-6Berd 5-6
Berd 5-6
 
HYPOTHESES.pptx
HYPOTHESES.pptxHYPOTHESES.pptx
HYPOTHESES.pptx
 
Statistical tools in research
Statistical tools in researchStatistical tools in research
Statistical tools in research
 
REVISION SLIDES 2.pptx
REVISION SLIDES 2.pptxREVISION SLIDES 2.pptx
REVISION SLIDES 2.pptx
 
t test for statistics 1st sem mba sylabus
t test for statistics 1st sem mba sylabust test for statistics 1st sem mba sylabus
t test for statistics 1st sem mba sylabus
 
BUS 308 Week 3 Lecture 1 Examining Differences - Continued.docx
BUS 308 Week 3 Lecture 1 Examining Differences - Continued.docxBUS 308 Week 3 Lecture 1 Examining Differences - Continued.docx
BUS 308 Week 3 Lecture 1 Examining Differences - Continued.docx
 
Section 1 Data File DescriptionThe fictional data represents a te.docx
Section 1 Data File DescriptionThe fictional data represents a te.docxSection 1 Data File DescriptionThe fictional data represents a te.docx
Section 1 Data File DescriptionThe fictional data represents a te.docx
 
Anova and T-Test
Anova and T-TestAnova and T-Test
Anova and T-Test
 
STATISTICS : Changing the way we do: Hypothesis testing, effect size, power, ...
STATISTICS : Changing the way we do: Hypothesis testing, effect size, power, ...STATISTICS : Changing the way we do: Hypothesis testing, effect size, power, ...
STATISTICS : Changing the way we do: Hypothesis testing, effect size, power, ...
 
T‑tests
T‑testsT‑tests
T‑tests
 
T test
T test T test
T test
 
Statistical test
Statistical test Statistical test
Statistical test
 
Epidemiological study design and it's significance
Epidemiological study design and it's significanceEpidemiological study design and it's significance
Epidemiological study design and it's significance
 
t test
t testt test
t test
 

More from ammanelectronic

George Forbes operates a law office under the name George Forbes, La.pdf
George Forbes operates a law office under the name George Forbes, La.pdfGeorge Forbes operates a law office under the name George Forbes, La.pdf
George Forbes operates a law office under the name George Forbes, La.pdf
ammanelectronic
 
G. With recent growth in the number of U.S. households wired for cab.pdf
G. With recent growth in the number of U.S. households wired for cab.pdfG. With recent growth in the number of U.S. households wired for cab.pdf
G. With recent growth in the number of U.S. households wired for cab.pdf
ammanelectronic
 
Fundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdf
Fundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdfFundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdf
Fundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdf
ammanelectronic
 

More from ammanelectronic (20)

Give five latest and uncommon research topics in intelligent vehicul.pdf
Give five latest and uncommon research topics in intelligent vehicul.pdfGive five latest and uncommon research topics in intelligent vehicul.pdf
Give five latest and uncommon research topics in intelligent vehicul.pdf
 
Give examples of teams you have been on that are poor or excellent .pdf
Give examples of teams you have been on that are poor or excellent .pdfGive examples of teams you have been on that are poor or excellent .pdf
Give examples of teams you have been on that are poor or excellent .pdf
 
Give critics on SULLIVAN hospital case study visioning processSo.pdf
Give critics on SULLIVAN hospital case study visioning processSo.pdfGive critics on SULLIVAN hospital case study visioning processSo.pdf
Give critics on SULLIVAN hospital case study visioning processSo.pdf
 
Give an example of an export and an importSolutionExport A co.pdf
Give an example of an export and an importSolutionExport A co.pdfGive an example of an export and an importSolutionExport A co.pdf
Give an example of an export and an importSolutionExport A co.pdf
 
Give an example of two divergent sequences X and Y such that a.) .pdf
Give an example of two divergent sequences X and Y such that a.) .pdfGive an example of two divergent sequences X and Y such that a.) .pdf
Give an example of two divergent sequences X and Y such that a.) .pdf
 
Give an example of a non-Abelian group that has exactly four element.pdf
Give an example of a non-Abelian group that has exactly four element.pdfGive an example of a non-Abelian group that has exactly four element.pdf
Give an example of a non-Abelian group that has exactly four element.pdf
 
Give an example of a function fN-Z that is surjective but not inje.pdf
Give an example of a function fN-Z that is surjective but not inje.pdfGive an example of a function fN-Z that is surjective but not inje.pdf
Give an example of a function fN-Z that is surjective but not inje.pdf
 
Give an Euler Circuit through the graph by listing the vertices in t.pdf
Give an Euler Circuit through the graph by listing the vertices in t.pdfGive an Euler Circuit through the graph by listing the vertices in t.pdf
Give an Euler Circuit through the graph by listing the vertices in t.pdf
 
Give 5 research project topics on SMART BUILDINGS TECHNOLOGY using s.pdf
Give 5 research project topics on SMART BUILDINGS TECHNOLOGY using s.pdfGive 5 research project topics on SMART BUILDINGS TECHNOLOGY using s.pdf
Give 5 research project topics on SMART BUILDINGS TECHNOLOGY using s.pdf
 
Give 4 reasons while Indonesia and Australia have to work together e.pdf
Give 4 reasons while Indonesia and Australia have to work together e.pdfGive 4 reasons while Indonesia and Australia have to work together e.pdf
Give 4 reasons while Indonesia and Australia have to work together e.pdf
 
Georgia works as a florist.She has 93 roses to arrange in vases.Each.pdf
Georgia works as a florist.She has 93 roses to arrange in vases.Each.pdfGeorgia works as a florist.She has 93 roses to arrange in vases.Each.pdf
Georgia works as a florist.She has 93 roses to arrange in vases.Each.pdf
 
General thoughts on Civil Engineering.I Have a discussion Board on.pdf
General thoughts on Civil Engineering.I Have a discussion Board on.pdfGeneral thoughts on Civil Engineering.I Have a discussion Board on.pdf
General thoughts on Civil Engineering.I Have a discussion Board on.pdf
 
George performed a hypothesis test. Luis checked GeorgeSolution .pdf
George performed a hypothesis test. Luis checked GeorgeSolution .pdfGeorge performed a hypothesis test. Luis checked GeorgeSolution .pdf
George performed a hypothesis test. Luis checked GeorgeSolution .pdf
 
George Forbes operates a law office under the name George Forbes, La.pdf
George Forbes operates a law office under the name George Forbes, La.pdfGeorge Forbes operates a law office under the name George Forbes, La.pdf
George Forbes operates a law office under the name George Forbes, La.pdf
 
General Journal Entry Worksheet Options to Choose from the Income St.pdf
General Journal Entry Worksheet Options to Choose from the Income St.pdfGeneral Journal Entry Worksheet Options to Choose from the Income St.pdf
General Journal Entry Worksheet Options to Choose from the Income St.pdf
 
Gary and Lakesha were married on December 31 last year. They are now.pdf
Gary and Lakesha were married on December 31 last year. They are now.pdfGary and Lakesha were married on December 31 last year. They are now.pdf
Gary and Lakesha were married on December 31 last year. They are now.pdf
 
G1 is the group of 2x2 non-singular matrices under matrix multiplica.pdf
G1 is the group of 2x2 non-singular matrices under matrix multiplica.pdfG1 is the group of 2x2 non-singular matrices under matrix multiplica.pdf
G1 is the group of 2x2 non-singular matrices under matrix multiplica.pdf
 
Galaxy A is moving away from us with a speed of 0.70c relative to th.pdf
Galaxy A is moving away from us with a speed of 0.70c relative to th.pdfGalaxy A is moving away from us with a speed of 0.70c relative to th.pdf
Galaxy A is moving away from us with a speed of 0.70c relative to th.pdf
 
G. With recent growth in the number of U.S. households wired for cab.pdf
G. With recent growth in the number of U.S. households wired for cab.pdfG. With recent growth in the number of U.S. households wired for cab.pdf
G. With recent growth in the number of U.S. households wired for cab.pdf
 
Fundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdf
Fundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdfFundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdf
Fundamentals of Corporate Finance Chapter 14 Introduction to Corpora.pdf
 

Recently uploaded

Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
kauryashika82
 
1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
QucHHunhnh
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
heathfieldcps1
 
Beyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global ImpactBeyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global Impact
PECB
 

Recently uploaded (20)

Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in DelhiRussian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
Russian Escort Service in Delhi 11k Hotel Foreigner Russian Call Girls in Delhi
 
Call Girls in Dwarka Mor Delhi Contact Us 9654467111
Call Girls in Dwarka Mor Delhi Contact Us 9654467111Call Girls in Dwarka Mor Delhi Contact Us 9654467111
Call Girls in Dwarka Mor Delhi Contact Us 9654467111
 
1029 - Danh muc Sach Giao Khoa 10 . pdf
1029 -  Danh muc Sach Giao Khoa 10 . pdf1029 -  Danh muc Sach Giao Khoa 10 . pdf
1029 - Danh muc Sach Giao Khoa 10 . pdf
 
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptxSOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
SOCIAL AND HISTORICAL CONTEXT - LFTVD.pptx
 
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
Explore beautiful and ugly buildings. Mathematics helps us create beautiful d...
 
Disha NEET Physics Guide for classes 11 and 12.pdf
Disha NEET Physics Guide for classes 11 and 12.pdfDisha NEET Physics Guide for classes 11 and 12.pdf
Disha NEET Physics Guide for classes 11 and 12.pdf
 
Sports & Fitness Value Added Course FY..
Sports & Fitness Value Added Course FY..Sports & Fitness Value Added Course FY..
Sports & Fitness Value Added Course FY..
 
The basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptxThe basics of sentences session 2pptx copy.pptx
The basics of sentences session 2pptx copy.pptx
 
Nutritional Needs Presentation - HLTH 104
Nutritional Needs Presentation - HLTH 104Nutritional Needs Presentation - HLTH 104
Nutritional Needs Presentation - HLTH 104
 
9548086042 for call girls in Indira Nagar with room service
9548086042  for call girls in Indira Nagar  with room service9548086042  for call girls in Indira Nagar  with room service
9548086042 for call girls in Indira Nagar with room service
 
IGNOU MSCCFT and PGDCFT Exam Question Pattern: MCFT003 Counselling and Family...
IGNOU MSCCFT and PGDCFT Exam Question Pattern: MCFT003 Counselling and Family...IGNOU MSCCFT and PGDCFT Exam Question Pattern: MCFT003 Counselling and Family...
IGNOU MSCCFT and PGDCFT Exam Question Pattern: MCFT003 Counselling and Family...
 
Web & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdfWeb & Social Media Analytics Previous Year Question Paper.pdf
Web & Social Media Analytics Previous Year Question Paper.pdf
 
Unit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptxUnit-IV- Pharma. Marketing Channels.pptx
Unit-IV- Pharma. Marketing Channels.pptx
 
Introduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The BasicsIntroduction to Nonprofit Accounting: The Basics
Introduction to Nonprofit Accounting: The Basics
 
A Critique of the Proposed National Education Policy Reform
A Critique of the Proposed National Education Policy ReformA Critique of the Proposed National Education Policy Reform
A Critique of the Proposed National Education Policy Reform
 
Measures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SDMeasures of Dispersion and Variability: Range, QD, AD and SD
Measures of Dispersion and Variability: Range, QD, AD and SD
 
Beyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global ImpactBeyond the EU: DORA and NIS 2 Directive's Global Impact
Beyond the EU: DORA and NIS 2 Directive's Global Impact
 
Z Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot GraphZ Score,T Score, Percential Rank and Box Plot Graph
Z Score,T Score, Percential Rank and Box Plot Graph
 
Measures of Central Tendency: Mean, Median and Mode
Measures of Central Tendency: Mean, Median and ModeMeasures of Central Tendency: Mean, Median and Mode
Measures of Central Tendency: Mean, Median and Mode
 
fourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writingfourth grading exam for kindergarten in writing
fourth grading exam for kindergarten in writing
 

Give a real-world situation or problem; clearly identify the indepen.pdf

  • 1. Give a real-world situation or problem; clearly identify the independent and dependent variables; give an explanation of whether an independent-samples or related-samples t test is most appropriate; the statistical null and alternative hypotheses; and describe what information the effect size would tell you that the probability value would not tell you, and your hypothetical results using correct APA format. Solution T-Test Example The two sample t-test simply tests whether or not two independent populations have different mean values on some measure. For example, we might have a research hypothesis that rich people have a different quality of life than poor people. We give a questionnaire that measures quality of life to a random sample of rich people and a random sample of poor people. The null hypothesis, which is assumed to be true until proven wrong, is that there is really no difference between these two populations. We gather some sample data and observe that the two groups have different average scores. But does this represent a real difference between the two populations, or just a chance difference in our samples? T-Test Statistic The statistics t-test allows us to answer this question by using the t-test statistic to determine a p-value that indicates how likely we could have gotten these results by chance. By convention, if there is less than 5% chance of getting the observed differences by chance, we reject the null hypothesis and say we found a statistically significant difference between the two groups. See Statistical Data Analysis for more information about hypothesis testing. http://faculty.vassar.edu/lowry/ch12pt1.html