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MA330 MATHEMATICAL STATISTIC I
\$ 15.00

1.

What method of data collection would you use to collect data for a study of the salaries of college professors at a particular college?

A) perform an experiment
B) use sampling
C) use a simulation
D) take a census

2.

There is a relationship between smoking cigarettes and getting emphysema. This statement describes

A) descriptive statistics
B) inferential statistics

3.

The number of complaint letters received by the USPS in a given day are

A) qualitative
B) quantitative

4.

After polling every 8th graduate, a major university estimated the annual salary of its alumni to be \$103,000. What sampling technique was used?

A) stratified
B) systematic
C) random
D) cluster
E) convenience

5.

A recent survey by the alumni of a major university indicated that the average salary of 8000 of its 250,000 graduates was \$120,000. This number is a

A) statistic
B) parameter

6.

Explain the difference between a population and a sample

Population consists of all of the members of a group about which you want to draw a conclusion. A sample is the portion of the population selected for analysis.

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