Question: Bardwell, Ensign, and Mills assessed the moods of 60 male US Marines following a month-long training exercise conducted at cold temperatures and high altitudes. Negative moods, including fatigue and anger, increased substantially during the training and lasted up to three months after the training ended. Mean mood scores were compared to population norms for three groups: college men, adult men, and male psychiatric outpatients. Let's examine anger scores for six men at the end of the training; these scores are fictional, but their mean and standard deviation are very close to the actual descriptive statistics for the sample: 14, 12, 13, 12, 14, 15.

a) SPSS: The population mean anger score for college men is 8.90. Conduct all six steps of a single-sample t-test. Be sure to label all six steps. Report the statistics as you would in a journal article.

b) SPSS : Now calculate the test statistic to compare this sample mean to the population mean anger score for adult men (M = 9.20). You do not have to repeat all the steps form part a, but conduct step 6 of hypothesis testing and report the statistics as you would in a journal article.