Question

. Dan has heard that assisting victims of natural disasters increases feelings of moral purpose in college students. He completes a diary study where students are asked to record thoughts about their moral worth each day, and he counts the number of statements each person makes about moral purpose. The data meet all of his assumptions and he uses α = 0.05.

Non-Assisting	Disaster Assisting
1	4
2	3
3	5
2	4
3	3
4	5
Mean=2.5	Mean=4
S2=1.1	S2=0.8

IF THESE DATA WERE COLLECTED FROM TWO DIFFERENT GROUPS OF PEOPLE,

1. Provide the null and alternative hypotheses for the appropriate test in symbols and in words.       
2. Set up the criteria for making a decision. That is, find the critical value(s).
3. Summarize the data into the appropriate test statistic
4. State your conclusion. Did you reject or fail to reject the null hypothesis? What does this indicate in terms of your original research question?
5. What are some confounding variables in this study?

Answer 1