Sampling Distribution
posted by Tina on .
Sampling Distribution
Complete solutions and illustrations are required.
4.The average breaking strength of a certain steel cable is 2000 pounds, with a standard deviation of 100 pounds. A sample of 20 cables is selected and tested. Find the sample mean that will cut off the upper 95% of all samples of size 20 taken from the population. Assume that the variable is normally distributed.

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