Interval estimates for the variance of a normal population rely on the random variable (n - 1)s² / σ²,which follows: A)a normal distribution. B)a binomial distribution. C)the Poisson distribution. D)a chi-square distribution.

Question

Quizplus · Accepted Answer

The given random variable follows a chi-square distribution with n-1 degrees of freedom. Therefore, interval estimates for the variance of a normal population rely on a chi-square distribution.

Interval Estimates for the Variance of a Normal Population Rely