Question

A certain adjustment to a machine will change the length of the parts it makes but will not affect the standard deviation. The length of the parts is normally distributed, and the standard deviation is 0.5 mm. After an adjustment is made, a random sample is taken to determine the mean length of the parts now being produce
d. The resulting lengths are as follows:
a. What is the parameter of interest?
b. Find the point estimate for the mean length of all parts now being produced.
c. Find the 0.99 confidence interval for m.


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  • CreatedAugust 28, 2015
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