Mathematics, 13.04.2021 01:00 MartinTDL
A standardized test is given to an eighth grade class and a seventh grade class. The superintendent believes that the variance in performance for the two grades is different. The sample variance of a sample of 11 test scores from the eighth grade class is 24.25. The sample variance of a sample of 11 test scores from the seventh grade class is 22.71. Construct the 95% confidence interval for the ratio of the population variances. Round your answers to four decimal places.
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A standardized test is given to an eighth grade class and a seventh grade class. The superintendent...
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