The manufacturer of a new product claims that his product will increase output per machine by at least 38 units per hour.A line manager adopts the product on 18 of his machines,and finds that the average increase was only 35 units per hour with a standard deviation of 12.2 units.Is there evidence to doubt the manufacturer's claim at a significance level of .10?

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The Answer of The manufacturer of a new product claims that his product will increase output per machine by at least 38 units per hour.A line manager adopts the product on 18 of his machines,and finds that the average increase was only 35 units per hour with a standard deviation of 12.2 units.Is there evidence to doubt the manufacturer's claim at a significance level of .10?

The Manufacturer of a New Product Claims That His Product