The following information was obtained from two independent samples selected from two normally distributed populations with unknown
Question:
a. Let µ1 be the mean of population 1 and 2 be the mean of population 2. What is the point estimate of µ1 µ2?
b. Construct a 99% confidence interval for µ1 µ2.
c. Test at a 2.5% significance level if µ1 is lower than µ2.
Transcribed Image Text:
Sample : 2.18 2.23 96 2.24 2.72 1.87 2.68 2.15 2.49 2.05 Sample 2: .82 1.26 2.00 .89 173 2.03 1.43 2.05 1.54 2.50 1.99 2.13
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a From Sample 1 n 1 10 x 2257 x 2 516873 1 xn 1 225710 2257 From Sam...View the full answer
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