A standardized test is given to an eighth grade class and a seventh grade class. The superintendent believes that the variance in performance from the eighth grade class is smaller than the variance in performance from the seventh grade class. The sample variance of a sample of 66 test scores from the eighth grade class is 8.758.75 . The sample variance of a sample of 1919 test scores from the seventh grade class is 21.7721.77 . Test the claim using a 0.010.01 level of significance. Let 2112 represent the population variance for eighth grade class.

Step2of5:

Determine the critical value(s) of the test statistic. If the test is two-tailed, separate the values with a comma. Round your answer(s) to four decimal places.