Essay
In random samples of 25 and 22 from each of two normal populations, we find the following statistics:
x1-bar = 56, s1 = 8.
x2-bar = 62, s2 = 8.5.
Assume that the population variances are equal.
Estimate with 95% confidence the difference between the two population means.
Correct Answer:
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-6 ±(2.014...View Answer
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Correct Answer:
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