Question
Consider the following hypothesis test. H 0 :10 H a : < 10 The sample size is 120 and the population standard deviation is8. Use=
Consider the following hypothesis test.
H0:10
Ha:< 10
The sample size is 120 and the population standard deviation is8. Use= 0.05.
If the actual population mean is7, the probability of a type II error is 0.2912. Suppose the researcher wants to reduce the probability of a type II error to 0.10 when the actual population mean is9. What sample size is recommended? (Round your answer up to the nearest integer.)
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Essentials Of Statistics For Business And Economics
Authors: David R. Anderson, Dennis J. Sweeney, Thomas A. Williams, Jeffrey D. Camm, James J. Cochran
8th Edition
1337114170, 978-1337114172
