10.63 The amount of shaft wear after a fixed mileage was determined for each of seven randomly...
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10.63 The amount of shaft wear after a fixed mileage was determined for each of seven randomly selected internal combustion engines, resulting in a mean of 0.0372 inch and a standard deviation of 0.0125 inch.
a. Assuming that the distribution of shaft wear is normal, test at level .05 the hypotheses H0: m .035 versus Ha: m .035.
b. Using s 0.0125, a .05, and Appendix Table 5, what is the approximate value of
b, the probability of a Type II error, when m .04?
c. What is the approximate power of the test when m 5 .04 and a .05?
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Related Book For
Introduction To Statistics And Data Analysis
ISBN: 9780840054906
4th Edition
Authors: Roxy Peck, Chris Olsen, Jay L. Devore
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