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The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation 2.7...

The weights of bowling balls are normally distributed with mean 11.5 pounds and standard deviation 2.7 pounds. A sample of 36 bowling balls is selected. What is the probability that the average weight of the sample is less than 11.32 pounds?

Write only a number as your answer. Round to 4 decimal places (for example 0.0048). Do not write as a percentage.

Math   Statistics-And-Probability   
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Answer #2

Note-i have used the biometrica table to get the capital phi value..

If there is any understanding problem regarding this please feel free to ask via comment box..thank you

answered by: anonymous
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