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19. An aircraft manufacturer requires bolts that are part of the landing gear assembly to have...

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Statistics

19. An aircraft manufacturer requires bolts that are part of thelanding gear assembly to have a mean diameter of 1.1 inches with avariance of no more than 0.04 inches2. The bolts are purchased froman outside supplier. A random sample of 30 bolts from a recentlyreceived shipment yielded a variance of 0.054 inches2. Should theshipment be returned? Perform the appropriate test of hypothesisusing alpha = 0.05. (15 points) T

est Statistic = ______________

Reject Region: Reject H0 x^2 if > ______________

Conclusion: ______________

Conclusion about shipment: ______________

Answer & Explanation Solved by verified expert
3.8 Ratings (694 Votes)
Solution The null and alternative hypotheses are as follows inchesinchesTo test the hypothesis we shall use chisquare test of varianceThe test statistic is given as follows Where is sample variance n is sample size and is    See Answer
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