Suppose a null hypothesis is that the population mean is greater than or equal to 100. Suppose
Question:
Suppose a null hypothesis is that the population mean is greater than or equal to 100. Suppose further that a random sample of 48 items is taken and the population standard deviation is 14. For each of the following α values, compute the probability of committing a Type II error if the population mean actually is 99.
a. α = .10.
b. α = .05.
c. α = .01.
d. Based on the answers to parts (a), (b), and (c), what happens to the value of β as α gets smaller?
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H 0 100 H a 100 n 48 99 14 a 10 z 10 128 From Table A5 area ...View the full answer
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Related Book For 
Business Statistics for Contemporary Decision Making
ISBN: 978-0470910184
6th Edition
Authors: Ken Black
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