The chi-square test statistic is chi-squared distributed with n - 1 degrees of freedom only if the:
A) population is normally distributed.
B) sample is normally distributed.
C) sample has a Student t-distribution with degrees of freedom equal to n - 1.
D) population has a Student t-distribution with degrees of freedom equal to n.

Question

Quizplus · Accepted Answer

The chi-square test statistic is chi-squared distributed with n - 1 degrees of freedom when the population from which the sample is drawn is normally distributed. This condition is necessary for the validity of the chi-square test assumptions.

The Chi-Square Test Statistic Is Chi-Squared Distributed with N -