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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 20 firemen and found s = 27.2 p
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 20 firemen and found s = 27.2 pounds.
Assuming that the weights of firemen are normally distributed, to test her research hypothesis the statistician would use a chi-square test. In that case, what is the computed test value?
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* statistician ****** ** **** *** ***** that *** ******** deviation ** the ******* of ******* ** ******* **** ** ****** ** ** ** *** selected a ****** ****** ** 20 firemen *** found * * *** ************** that *** weights ** ******* *** ******** distributed ** **** *** research ********** the ************ would use * ********** test ** **** case **** is *** ******** **** ***************** have * = ** * * *** *** ** = 25Test ******** * ** *** ** ******** = *** *** ** (272)²/25² * 1405696/625 = *****
