Answered

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Efficient manufacturing: Efficiency experts study the processes used to manufacture items in order to make them as efficient as
possible. One of the steps used to manufacture a metal clamp involves the drilling of three holes. In a sample of 85 damps, the
mean time to complete this step was 50.5 seconds. Assume that the population standard deviation is 0 - 12 seconds. Round the
critical value to no less than three decimal places.
Part: 0/2
Part 1 of 2
(a) Construct a 95% confidence interval for the mean time needed to complete this step. Round the answer to at least one
decimal place.
A 95% confidence interval for the mean is

Sagot :

azenethvillarruel

Answer:

I'm not sure sorry good luck though

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