Question

Over the course of several weeks, Mitchell has trained his lab rats to run through a maze. At the end of the maze, the rats are rewarded with breakfast. It has been established that his population of rats completes the maze in an average of 10.00 seconds. Mitchell wonders if the time would be significantly less if he had the rats run the maze during a different time of day. As an experiment, he randomly selects 17 of the rats and has them run the race immediately after he feeds them dinner. n = 17, X = 9.S2, s = 1.4 (a is unknown)

34a

Write the null and alternative hypothesis.

34b

a = .0S. Draw a picture of the rejection region on the appropriate curve.

34c

Compute the test statistic.

34d

What is Mitchell’s conclusion?

34e

Draw a picture and place bounds on the p-value. Hint: remember this rule: H0 is rejected if p-value < a

Answer 1