In random samples of 12 from each of two normal populations, we found the following statistics: a.
Question:
In random samples of 12 from each of two normal populations, we found the following statistics:
a. Test with .05 to determine whether we can infer that the population means differ.
b. Repeat part
(a) increasing the standard deviations to s1 210 and s2 198.
c. Describe what happens when the sample standard deviations get larger.
d. Repeat part
(a) with samples of size 150.
e. Discuss the effects of increasing the sample size.
f. Repeat part
(a) changing the mean of sample 1 to
.
g. Discuss the effect of increasing .
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Related Book For
Statistics For Management And Economics
ISBN: 9781133420774
9th Edition
Authors: Gerald Keller, Kenneth C Louden
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