For a chi-square goodness-of-fit test for a normal distribution using 8 categories with estimated mean and standard deviation, we would use the critical value for 7 degrees of freedom.

Question

Quizplus · Accepted Answer

For a chi-square goodness-of-fit test, the degrees of freedom are calculated as the number of categories minus 1 minus the number of parameters estimated from the data. Since both the mean and standard deviation are estimated, the degrees of freedom would be 8 - 1 - 2 = 5.

For a Chi-Square Goodness-Of-Fit Test for a Normal Distribution Using