Problem

T he data for a random sample of six paired observations are shown in the following table...

T he data for a random sample of six paired observations are shown in the following table and saved in the LM7_33 file

Pair	Sample from Population 1	Sample from Population 2
1	7	4
2	3	1
3	9	7
4	6	2
5	4	4
6	8	7

a. Calculate the difference between each pair of observations by subtracting observation 2 from observation 1. Use the differences to calculate
b. If μ1 and μ 2 are the means of populations 1 and 2, respectively, express md in terms of μ 1 and μ 2.
c. Form a 95% confidence interval for μ d.
d. Test the null hypothesis H0: μ d = 0 against the alternative hypothesis Ha: μd ≠ 0 Use a = .05