9. Independent random samples taken on two university campuses revealed the following information concerning the average amount of money spent on textbooks during the fall semester.
University A |
University B |
|
Sample Size |
50 |
40 |
Average Purchase |
$260 |
$250 |
Population Standard Deviation(s) |
$20 |
$23 |
We want to determine if, on the average, students at University A spent more on textbooks then the students at University B.
a. Compute the test statistic.
b. Compute the p-value.
c. What is your conclusion? Perform a 7 step analysis. Let a = .05.
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