Solved: In Exercises 1720, (a) identify the claim and state H0 and Ha, (b) find the

Chapter 10, Problem 20

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In Exercises 1720, (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.A quality technician claims that the variance of the insert diametersproduced by a plastic companys new injection mold for automobiledashboard inserts is less than the variance of the insert diametersproduced by the companys current mold. The table shows samples ofinsert diameters (in centimeters) for both the current and new molds.At a = 0.05, can you support the technicians claim?New 9.611 9.618 9.594 9.580 9.611 9.597Current 9.571 9.642 9.650 9.651 9.596 9.636New 9.638 9.568 9.605 9.603 9.647 9.590Current 9.570 9.537 9.641 9.625 9.626 9.579