When Testing for a Normal Distribution with the Chi- Square

Multiple Choice

When testing for a normal distribution with the chi- square goodness- of- fit test with a sample size of 30 observations, the number of intervals needed to satisfy the minimum number of expected frequencies is ________ .

A) The sample size is too small to perform the chi- square goodness- of- fit test.
B) 4
C) 6
D) 5