Multiple Choice
A statistician claims that the standard deviation of the weights of firemen is less than 25 pounds. A sample of 20 randomly chosen firemen had a standard deviation of their weights of 26.2 pounds. Assume the variable is normally distributed. At α = 0.05, what is the critical value χ2 for this test?
A) 31.410
B) 30.144
C) 10.851
D) 10.117
Correct Answer:
Verified
Correct Answer:
Verified
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