A machine makes sticks of butter whose average weight is 4.0 ounces. The SD of the weights is 0.05 ounces. There is no trend or pattern to the data. There are 4 sticks to a package. (1 pound = 16 ounces) A store buys 100 packages of butter. Estimate the chance that they get 100 pounds of butter, to within 2 ounces.

MATLAB: An Introduction with Applications
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A machine makes sticks of butter whose average weight is 4.0 ounces. The SD of the weights is 0.05 ounces. There is no trend or pattern to the data. There are 4 sticks to a package. (1 pound = 16 ounces) A store buys 100 packages of butter.

Estimate the chance that they get 100 pounds of butter, to within 2 ounces.

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