Essay
Two machines are being considered to weigh luggage at an airport.A standard 30 kg weight is used to test the machines.Sample weigh-ins were taken from each machine and the following results were obtained.
At the 0.02 level of significance,test the claim that the population mean for Machine 1 is different from the population mean for Machine 2.
Correct Answer:

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H0: μ1 - μ2 = 0 HA: μ1 - μ2 ≠ 0
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Correct Answer:
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