Question

A researcher tests whether participation in community-sponsored services (such as art classes, and field trips) increases positive attitude scores (as rated from 1 to 15). The researcher implemented the community-sponsored services over a 6-month period and at the end of the period, the researcher measured positive attitude scores in the two groups. The researcher recruited a total of 14 senior citizens (age 80 or older), and the group was divided into two separate groups. The first group participated in the art classes while the second group participated in the field trips. After the participation, the first group reported the mean value of 11 for their positive attitude scores with the sample variance of 5. The second group reported the mean value of 9 for their positive attitude scores with the sample variance of 4. Use p = .01 Carry out the 4 step hypothesis testing:

Answer 1