Question
A statistician wishes to test the claim that the standard deviation of the weights of firemen is greater than 25 pounds. To do so, she
A statistician wishes to test the claim that the standard deviation of the weights of firemen is greater than 25 pounds. To do so, she selected a random sample of 30 firemen and found s = 27.2 pounds.
Assuming that the weights of firemen are normally distributed, if the statistician wanted to test herresearch hypothesisat the .05 level of significance, what is the critical value?
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Advanced Engineering Mathematics
Authors: ERWIN KREYSZIG
9th Edition
0471488852, 978-0471488859
