Mathematics, 12.03.2021 19:40 MadisonMayberry9650
In a random sample of 92 automobile engine crankshaft bearings, 24 have a surface finish that is rougher than the specifications allow. Construct a 99% two-sided confidence interval for p, the proportion of bearings with surface finish rougher than allowed specification. What is the upper bound of this 2-sided confidence interval
Answers: 1
, and a confidence level of 
, we have the following confidence interval of proportions.
.
, z is the value of Z that has a pvalue of 
, so 
. 
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In a random sample of 92 automobile engine crankshaft bearings, 24 have a surface finish that is rou...
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