Long-term exposure to stress can result in a variety of health problems. A study tested the effects of cortisol, the primary hormone released during stress, on memory retention of 12 individuals. Subjects were shown a set of 60 words and 24 hours later were asked to recall as many words as they could remember. One hour before the retention test subjects received a dose of either cortisol or a placebo. Then two weeks later the same procedures were repeated with the same individuals, but with the different set of 60 words and with subjects receiving the opposite treatment than they received the first week. The number of words retained for both treatments are listed in the Table 1 below. Subject 1| 2 | 3 | 4 | 5 | 6 | 7| 8 | 9 | 10 | 11 | 12 Placebo 14 Cortisol 11 12 10 9 13 | 12 14 9 11 | 9 10 | 14 16 11 12 15 15 17 14 15 12 16 13 Table 1: The number of words retained by 12 test subjects. We wish to perform a hypothesis to determine if cortisol decreases long-term memory.

Long-term exposure to stress can result in a variety of health problems. A study tested the effects of cortisol, the primary hormone released during stress, on memory retention of 12 individuals. Subjects were shown a set of 60 words and 24 hours later were asked to recall as many words as they could remember. One hour before the retention test subjects received a dose of either cortisol or a placebo. Then two weeks later the same procedures were repeated with the same individuals, but with the different set of 60 words and with subjects receiving the opposite treatment than they received the first week. The number of words retained for both treatments are listed in the Table 1 below. Subject 1| 2 | 3 | 4 | 5 | 6 | 7| 8 | 9 | 10 | 11 | 12 Placebo 14 Cortisol 11 12 10 9 13 | 12 14 9 11 | 9 10 | 14 16 11 12 15 15 17 14 15 12 16 13 Table 1: The number of words retained by 12 test subjects. We wish to perform a hypothesis to determine if cortisol decreases long-term memory.

Name: a. The appropriate hypotheses areb. The value of test statistic and p-
Uploaded: 2024-03-20T07:07:00.000Z
Channel: Bartleby
Description: a. The appropriate hypotheses areb. The value of test statistic and p-value arec. At the significance level calculated in part (b), we conclude that cortisoli. Decreases long-term memoryii. Does not decrease long-term memory Long-term exposure to str