In a goodness-of-fit test,the null hypothesis states that the data came from a normally distributed population.The researcher estimated the population mean and population standard deviation from a sample of 500 observations.In addition,the researcher used 6 standardized intervals to test for normality.Using a 5% level of significance,the critical value for this test is:
A) 11.143.
B) 9.348.
C) 7.815.
D) 9.488.

Question

Quizplus · Accepted Answer

The critical value for a goodness-of-fit test with 6 intervals and a significance level of 5% is 7.815. This value can be found in a chi-square distribution table with 5 degrees of freedom (number of intervals minus 1) and a significance level of 5%.

In a Goodness-Of-Fit Test,the Null Hypothesis States That the Data