Breaking Strength of Steel Cable The average breaking strength of a certain brand of steel cable is  2000pounds, with a standard deviation of 100pounds. A sample of 20 cables is selected and tested. Find the sample mean that will cut off the upper 91% of all samples of size 20 taken from the population. Assume the variable is normally distributed. Round intermediate z-value calculations to 2 decimal places and round the final answer to at least 2 decimal places.   The sample mean that will cut off the upper  91% of all samples of size 20 is ____ pounds.

MATLAB: An Introduction with Applications
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Breaking Strength of Steel Cable The average breaking strength of a certain brand of steel cable is 
2000pounds, with a standard deviation of 100pounds. A sample of 20 cables is selected and tested. Find the sample mean that will cut off the upper 91% of all samples of size 20 taken from the population. Assume the variable is normally distributed. Round intermediate z-value calculations to 2 decimal places and round the final answer to at least 2 decimal places.
 
The sample mean that will cut off the upper 
91% of all samples of size 20 is ____ pounds.
 
 
 
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