Time left 0:57:32 Toll Brothers is a luxury home builder that would like to test the hypothesis that the variance for the size of new homes exceeds 160000 (square feet). The square footage for a random sample of 25 new homes was recorded. The standard deviation for this sample was found to be 390 square feet. Test this hypothesis using a = 0.10. a) What is the parameter of interest? ( b) State the null and the alternatíve hypotheses. (1 c) What is the appropriate test statistic?

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