Computing z test for population mean

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Reference no: EM13106622

Xerox Claims their copier is the same speed as Cannon's copier. The average speed of cannon's copier is 27 copies per minute. A test of 49 runs is done on the Xerox copier giving a sample mean X = 26 and a sample standard deviation s = 2.65. Using the significance level  = .02, and assuming a normal distribution what does the evidence conclude about the two machines.

Reference no: EM13106622

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