Question

A student believed that students in a Health Sciences program at his college studied, on average, more than students in other programs. He decided to assess whether this was true by collecting data on the typical number of hours per week that students studied during the semester. He collected data from a random sample of students. The table below summarizes the results. Sample Standard Deviation n Sample Mean Health Sciences 42 24.3 5.65 Other Programs 35 22.0 8.35 What is the difference in sample means? Round the difference to two decimal places. The difference should be: mean number of hours studying per week from Health Science students minus the mean number of hours studying per week from students in other programs.

Answer 1

solution:

difference between sample mean =(Health science mean -other program mean)

                                                         = 24.3 - 22.0

                                                         =2.30

i.e.difference between sample mean =2.30