Question: A study is designed to test whether or not the We-Help Learning Center actually reduces student’s absences from public school. A group of five students were randomly selected and the number of absences they had for one month was recorded. Then over the next month they studied with We-Help Learning Center and then over the following month the number of absences from school was recorded. The results are listed below:

At the .01 significance level, test the claim of a zero difference between the number of absences before and after studying with We-Help Learning Center.

Ha: \[{{\mu }_{D}}=0\]

H1:

=0.01

Distribution: t

Test Statistic: t = -1.332

P-value: 0.2537

Decision on H0: Fail to reject

Interpretation: We don't have enough evidence to reject the claim the mean difference is zero.