Chapter 18, Problem 45E

(a)

To determine

Plot the data.

Check whether the assumptions and conditions for the inference are satisfied.

(b)

To determine

Test the hypothesis that the mean completion time taken by the rat to find its maze is 60 seconds.

(c)

To determine

Eliminate the outlier and test the hypothesis.

Draw the conclusion based on the results of hypothesis.

(d)

To determine

Explain whether this maze meets the requirements that the maze takes one minute to complete on average.