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Set up test hypothesis

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Reference no: EM132413736

Problem: An inventor has developed a new, energy -efficient lawn mower engine. He claims that the engine will run continuously for 5 hours (300 minutes) on a single gallon of regular gasoline. Suppose simple random samples of 500 engines were tested. The engines run for an average of 295 minutes, with a standard deviation of 20 minutes. Test the claim that the run time differs from 300 minutes. Use a 0.05 level of significance.

Required:

a) Set up test hypothesis.

b) Write test statistics and sketch.

c) Apply classical or P-value method.

d) Draw conclusion and interprt.

Reference no: EM132413736

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