Question

Random sampling from two normal populations produced the following results:

a. Estimate with 90% confidence the difference between the two population means.
b. Repeat part (a) changing the sample standard deviations to 41 and 15, respectively.
c. What happens when the sample standard deviations increase?
d. Repeat part (a) doubling the sample sizes.
e. Describe the effects of increasing the sample sizes.



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  • CreatedFebruary 03, 2015
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