Question 728372
A hundred squash balls are tested by dropping from a height of 100 inches and measuring the height of the bounce. 
A ball is “fast” if it rises above 32 inches. 
The average height of bounce was 30 inches and the standard deviation was ¾ inches. 
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What is the chance of getting a “fast” standard ball?

z(32) = (32-30)/(3/4) = 8/3
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P(x > 32) = P(z > 8/3) = normalcdf(8/3,100) = 0.0038
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cheers,
Stan H.
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