Question: Problem #2 (20 pts). In a random sample of 85 automobile engine crankshaft bearings, 10 have a surface finish roughness that exceeds the specifications.

Problem #2 (20 pts). In a random sample of 85 automobile engine

Problem #2 (20 pts). In a random sample of 85 automobile engine crankshaft bearings, 10 have a surface finish roughness that exceeds the specifications. Do these data present strong evidence that the proportion of crankshaft bearings exhibiting excess surface roughness exceeds 0.10? State the appropriate hypotheses. Test the appropriate hypotheses using = 0.05. Find z,. Is it possible to reject H, hypothesis at the 0.05 level of significance?

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