Interpret computer output: The following output from MINITAB presents a confidence interval for the mean difference between matched pairs.

a. Find the point estimate of ????d.

b. How many degrees of freedom are there?

c. Fill in the blanks: We are confident that the mean difference is between and .

Transcribed Image Text:

N Mean StDev SE Mean Difference 15 9.8612 3.7149 0.95918 95% CI for mean difference: (7.803957, 11.918443)