MATCHING: For the following problems, write the letter of the most appropriate
statistical analysis technique next to the story. Note: each answer choice may be used
once, more than once, or not at all.
A. Mean and/or
standard deviation
B. Simple linear
regression
C. Multiple
linear regression
D. 1-sample mean
t-test
E. Matched pairs
t-test
F. Comparison of
means t-test
G. 1-sample
proportion Z-test
H. 2-sample
proportion Z-test
I. Chi-squared test J. One-way
ANOVA
K. Two-way
ANOVA
L. Five number
summary
_____ 1. Is college major associated with the region of the country a student is
from?
_____ 2. A group of taste testers is asked to rate (in random order) both Coke and
Pepsi on a scale of 1-10. Is Coke better tasting than Pepsi on average?
_____ 3. What is the average taste test rating for Coke on a scale of 1-10?
_____ 4. Do major and region of the country a student is from affect his/her GPA?
_____ 5. Which of the following are important for predicting a student’s graduation
GPA: the number of semesters a student spends in college, their high
school GPA, and their SAT scores?
_____ 6. Is the percentage of people in Tippecanoe county who are Purdue students
significantly higher in 2007 than it was in 1994 if a random sample of
residents was taken both years?
_____ 7. Are height and weight independent?
_____ 8. Are freshman taller than seniors on average?
_____ 9. Are average GPAs the same for science and engineering majors?
_____ 10. Are average GPAs the same for science, engineering, nursing, and
communications majors?
_____ 11. Is the average GPA 3.0?
_____ 12. What is the middle GPA for this group of students?
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