Question: 20. The following data are from matched samples taken from two populations. Population Element 1 2 1 11 8 2 7 8 3 9 6

20. The following data are from matched samples taken from two populations.

Population Element 1 2 1 11 8 2 7 8 3 9 6 4 12 7 5 13 10 6 15 15 7 15 14

a. Compute the difference value for each element.

b. Compute d.

c. Compute the standard deviation sd.

d. What is the point estimate of the difference between the two population means?

e. Provide a 95% confidence interval for the difference between the two population means.

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