Mathematics, 18.07.2021 22:30 girl88
The average breaking strength of a certain brand of 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 the variable is normally distributed.
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The average breaking strength of a certain brand of steel cable is 2000 pounds, with a standard devi...
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