The following information is obtained from two independent samples selected from two populations. n1 = 650 1
Question:
n1 = 650 1 = 1.05 σ1 = 5.22
n2 = 675 2 = 1.54 σ1 = 6.80
a. What is the point estimate of µ1 – µ2?
b. Construct a 95% confidence interval for µ1 – µ2. Find the margin of error for this estimate.
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a 1 2 105 154 49 b 1 2 1 2 n 1 2 2 n 522 ...View the full answer
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