Multiple Choice
The statistic (n − 1) s2 / σ2 has a chi-squared distribution with n − 1 degrees of freedom if:
A) the sample has a Student t-distribution with degrees of freedom equal to n − 1.
B) the sample is normally distributed with variance equal to s2.
C) the population is normally distributed with variance equal to σ2.
D) All of these choices are true.
Correct Answer:
Verified
Correct Answer:
Verified
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