Question

Researchers would like to see if there is a difference in satisfaction levels in a group of families’ use of service centers following a social service intervention. The data for this study is in the Excel data file, under the tab labeled Question 3. Conduct the t-test: Paired with Two-Sample for Means.

Before intervention:

1.3
2.5
2.3
8.1
5
7
7.5
5.2
4.4
7.6
9
7.6
4.5
1.1
5.6
6.2
7
6.9
5.6
5.2

After intervention:

6.5
8.7
9.8
10.2
7.9
6.5
8.7
7.9
8.7
9.1
8.4
6.4
7.2
5.8
6.9
5.9
7.6
7.8
7.3
4.6

a. What is the null hypothesis?

b. What is the research hypothesis?

c. Why run a Two-Sample for Means t-test?

d. Interpret the findings. What are the results of the hypothesis test? Can you reject the null hypothesis?

Answer 1

Paired sample t-test for means