Question

The engine of the Volvo model S70 T-5 is stated to provide 246 horsepower.
To test this claim, believing it is too high, a competitor runs the engine n = 60 times, randomly chosen, and gets a sample mean of 239 horsepower and standard deviation of 20 horsepower. Conduct the test, using α = 0.01.


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  • CreatedJune 03, 2015
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