Comparing Two Variances In Exercises 1926, (a) identify the claim and state H0 and Ha
Chapter 10, Problem 19(choose chapter or problem)
Comparing Two Variances In Exercises 1926, (a) identify the claim and state H0 and Ha, (b) find the critical value and identify the rejection region, (c) find the test statistic F, (d) decide whether to reject or fail to reject the null hypothesis, and (e) interpret the decision in the context of the original claim. Assume the samples are random and independent, and the populations are normally distributed. If convenient, use technology. Life of Appliances Company A claims that the variance of the lives of itsappliances is less than the variance of the lives of Company Bs appliances.A sample of the lives of 20 of Company As appliances has a variance of 1.8.A sample of the lives of 25 of Company Bs appliances has a variance of 3.9.At a = 0.05, can you support Company As claim?
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