# Critical Chi-Square Values

Suppose that on a 100-point test, the goal is for the students' exam scores to have a standard deviation of less than 10 pts. A recent sample of 22 exams has a standard deviation of 12.1. Use alpha = 0.05.

H0: population variance > or = 100

H1: population variance < 100

What is the critical Chi-square value?

For the same hypothesis test, what is the Chi-Square statistic?

For the same hypothesis test, what is the p-Value?

For the same hypothesis test, interpret the results.

https://brainmass.com/statistics/chi-squared-test/critical-chi-square-values-523585

#### Solution Preview

See the attached file.

Chi-square question

Suppose that on a 100-point test, the goal is for the students' exam scores to have a standard deviation of less than 10 pts. A recent sample of 22 exams has a standard deviation of 12.1. Use alpha = ...

#### Solution Summary

The solution discuses the critical chi-squre values.