Persons having Reynaud's syndrome are apt to suffer a sudden impairment of blood circulation in fingers and
Question:
a. Consider testing H0: µ1 - µ2 = -1.0 versus Ha: µ1 - µ2 < - 1.0 at level .01. Describe in words what Ha says, and then carry out the test.
b. What is the probability of a type II error when the actual difference between µ1 and µ2 is µ1 - µ2 = -1.2?
c. Assuming that m = n, what sample sizes are required to ensure that β = .1 when µ1 - µ2 = -1.2?
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781305251809
9th Edition
Authors: Jay L. Devore
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