Couples were recruited for a study of how many words people speak in a day. A random sample of 57 males resulted in a mean of 15,236 words and a standard deviation of 7796 words. Use a 0.10 significance level to test the claim that males have a standard deviation that is greater than the standard deviation of 7460 words for females. Use the accompanying method of approximation to estimate the critical value of y for this scenario. How close is it to the critical value of x2 = 69.919 obtained by using Statdisk and Minitab? O Click the icon to view information about the approximation.

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