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The sales representative for a manufacturer of a new product claims that the product will increase output per machine by at least 29 units per hour.A line manager installs the product on 15 of the machines,and finds that the average increase was only 26 with a standard deviation of 6.2.
-What are the appropriate null and alternative hypotheses?

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Quizplus · Accepted Answer

The null hypothesis (H0) should represent the claim or the status quo, which in this case is that the product will increase output by at least 29 units per hour, so μ ≥ 29. The alternative hypothesis (H1) is what we are trying to find evidence for, which in this scenario is that the product increases output by less than 29 units per hour, so μ < 29.

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