Chapter 25, Problem 4E

(a)

To determine

To describe an experiment design requiring a matched pair t procedure to analyze the results.

Explanation of Solution

In the question researchers want to see that if many people believe that students gain weight as freshmen and they want to conduct a study for this to see if it is true. Thus, to design an experiment requiring a matched pair t procedure to analyze the results we have to randomly select students who start college. And then we will weigh all students directly before and directly after their freshman school year. And then we will finally examine the weight gain for each student.

(b)

To determine

To describe an experiment design requiring an independent sample procedure to analyze the results.

Explanation of Solution

In the question researchers want to see that if many people believe that students gain weight as freshmen and they want to conduct a study for this to see if it is true. Thus, to design an experiment design requiring an independent sample procedure to analyze the results we have to randomly select students. And then we will measure the weight of each student. Then, the first group contains only freshmen. And the second group contains all other students. And finally we will compare the mean weight for the two groups.