ball bearings

Project Description:

an industrial sewing machine use ball bearings that are targeted to have a diameter of .0.75 inch. the lower and upper specification limits under which the ball bearing can operate are 0.74 inch (lower) and 0.76 (upper). past experience has indicated that the actual diameter of the ball bearings is approximatetly normally distributed, with a mean of 0.004 inch. if you select random sample of 25 ball bearings, what is the probability that the sample mean is:
1) between the target and the population mean of 0.753?
2) between the lower specification limit and the target?
3) greater than the upper specification limit?
4) less than limit the lower specification?
5) the probability is 93% that the sample mean diameter will be greater than what value?

need this answered in excel 2010 and all formulas included.
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Price Type: Negotiable

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