Amanufacturer of mountaineering equipment produces traditional three-strand climbing raope on two separate production ines, Ine 1 and line 2. The manufacturer regularly tests the tensile strength of its ropes by randomly selecting ropes from production and subjecting them to various tests. The results from the most recent random sample of ropes are shown below. Assuming the population of tensile strengths for each line is appraximately normally distributed with equal variances can the manufacturer concude there is a diference between the mean tensile strengths of ropes produced on the two lines? Conduct the appropriate hypothesis test at the 0.05 level of significance Line 2 X 7 223 6.740 S2435 ng 30 n, 25 What are the appropriate hypotheses to test? OB. Hy -20 OC. Hy -s0 HA 0 OF Hy -20 A Hg P20 OD. Hy P20 Datermine the reiection reglon for the test stadisdic Select the corect choice below and flin the ansuer box to complete vour choice (Round to four decimal places as needed) OA Calculate the value of the test statstic tORound to four decimal places as needed) in he rejection region. the nul hypothesis. There is evidence to conclude that the two population means are different Since the test statistic

Amanufacturer of mountaineering equipment produces traditional three-strand climbing raope on two separate production ines, Ine 1 and line 2. The manufacturer regularly tests the tensile strength of its ropes by randomly selecting ropes from production and subjecting them to various tests. The results from the most recent random sample of ropes are shown below. Assuming the population of tensile strengths for each line is appraximately normally distributed with equal variances can the manufacturer concude there is a diference between the mean tensile strengths of ropes produced on the two lines? Conduct the appropriate hypothesis test at the 0.05 level of significance Line 2 X 7 223 6.740 S2435 ng 30 n, 25 What are the appropriate hypotheses to test? OB. Hy -20 OC. Hy -s0 HA 0 OF Hy -20 A Hg P20 OD. Hy P20 Datermine the reiection reglon for the test stadisdic Select the corect choice below and flin the ansuer box to complete vour choice (Round to four decimal places as needed) OA Calculate the value of the test statstic tORound to four decimal places as needed) in he rejection region. the nul hypothesis. There is evidence to conclude that the two population means are different Since the test statistic

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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