Exer chp1 (3)

1. INFO 2701 – FOUNDATION OF QUANTIATIVE ANALYSIS
SEM 1 2015 / 2016
Chapter 1
SEM 1 2015/2016
DR. NA
EXERCISE_01 – CHAPTER 1
OBJECTIVE: BuildingBasic Skillsand Understandingon Statistics.
1. What is Statistics? Why should I study statistics?
2. Differentiate between Data and Information. Give examples.
3. Differentiate between Population and Sample. Give examples.
4. Why is a sample used more often than a population?
5. What is the difference between a parameter and a statistic?
6. What are the TWO main branches of statistics? Explain.
7. Describe TWO types of data. Give 5 examples for each data type.
8. There are 4 level of measurements for data; nominal, ordinal, interval and ratio.
a. Explain each.
b. Find 2 examples of data for each level of measurement.
9. List FOUR (4) methods of data collection.
10. Explain FOUR (4) sampling techniques. Give example for each sampling technique.
11. Explain each of the term below:
a. Confounding variable
b. Placebo effect
c. Randomization