# Question

Assume simple random sampling. Calculate the 95% confidence interval estimate for the population mean for each of the following.

a. N = 1200; n = 80; s = 10; x = 142

b. N = 1425; n = 90; s2 = 64; x = 232.4

c. N = 3200; n = 200; s2 = 129; x = 59.3

a. N = 1200; n = 80; s = 10; x = 142

b. N = 1425; n = 90; s2 = 64; x = 232.4

c. N = 3200; n = 200; s2 = 129; x = 59.3

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