Homework One:

A group of freshman football players were told that they had to bulk up in order to have any chance of playing on the varsity the following year. The coach is interested in determining if these players are serious about playing ball. To determine this he wants to know if there is a statistically significant difference between the mean weight gain for his players and the mean weight gain for students from other High Schools around the state (20 pound weight gain).

Open the Homework1samplet file and then run the one-sample t test. Answer the following questions:

How should the hypotheses be written (both null and alternative hypotheses)

Interpret the SPSS printout in terms of rejecting or failing to reject the null hypothesis.

How would these results be reported to an individual who is not familiar with the process of statistical research?

 

Homework Two:

A group of 20 obese adult males was selected and randomly divided into two groups of 10 subjects each. In Group A, the experimental group, the men were involved in a vigorous, 20-minute-per-day exercise program and also given instructions on the importance of diet. Members of Group B, the control group, received the diet instructions but were not involved in the exercise program. The reduction in their cholesterol levels is under consideration by the researcher.

Open the Homeworkindependentsample file and then run the independent sample t test. Answer the following question:

How should the hypotheses be written

Interpret the SPSS printout in terms of rejecting or failing to reject the null hypothesis

How would these results be reported to an individual who is not familiar with the process of statistical research?