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.A manufacturer of pencils is choosing between two pencil making machines.Machine A produces pencils which have a mean length of 6 inches and a standard
.A manufacturer of pencils is choosing between two pencil making machines.Machine A produces pencils which have a mean length of 6 inches and a standard deviation of 0.1 inch while machine B produces pencils which have a mean length of 6 inches and a standard deviation of 0.4 inch.Which machine should the manufacturer choose and why?
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