A Quality Manager in a Small Manufacturing Company Wants to Estimate

Multiple Choice

A quality manager in a small manufacturing company wants to estimate the proportion of items produced by a very specialized process that fail to meet a customer's specification.Because it is very expensive to determine if an item produced by the process meets the specification,only a very small number of items can be tested.A random sample of 15 items was selected,and in the sample three of them failed.At the 98% confidence level,what is the margin of error in the plus four estimate of p?

A) 0.198
B) 0.023
C) 0.235
D) 0.261
E) Not within ± 0.01 of any of the above