a) Degrees of freedomb) The value of test statistic and p-value are c) At the significance level calculated in part (b), we conclude that exercise 1. We know that physical exercise improves the body, but can it also improve the mind? Scientistsat The Salk Institute at La Jolla, California, took a random sample of adult mice and dividedthem into two groups. Both groups were trained to find a platform in a maze filled with cloudywater. (Mice hate swimming, so they seek the platform as the refuge.) The first group of miceexercised on a running wheel, about 5 kilometers per day. The second group remained inactive.After one month, the mice were placed in the maze and timed until each reached the platform.The sample statistics are given below.Active group: n1 = 15, ē1 = 17.6, s1 = 3.0%3DInactive group: ng = 12, F2 = 27.1, s2 = 6.3%3DConduct a hypothesis test to determine if exercise improves memory in adult mice; in otherwords, test if the active group is, on average, faster than the inactive group.

Name: a) Degrees of freedomb) The value of test statistic and p-value are c)
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: a) Degrees of freedomb) The value of test statistic and p-value are c) At the significance level calculated in part (b), we conclude that exercise 1. We know that physical exercise improves the body, but can it also improve the mind? Scientistsat The