When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic is approximately distributed as a chi-square distribution.

Question

When the null hypothesis is true and n is greater than or equal to 5 per group,the test statistic   is approximately distributed as a chi-square distribution.

Quizplus · Accepted Answer

This statement is true. When the null hypothesis is true and sample sizes are sufficiently large, the test statistic for a one-sample or independent samples t-test follows an approximate chi-square distribution, with degrees of freedom equal to the number of groups minus 1.

When the Null Hypothesis Is True and N Is Greater