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Suppose that National Motors randomly selects a sample of n = 91 ZX-900s. The company records...

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Basic Math

Suppose that National Motors randomly selects a sample of n = 91ZX-900s. The company records the stopping distance of each of theseautomobiles and calculates the mean and standard deviation of thesample of n = 81 stopping distances to be ȳ = 57.8feet and s =6.02feet.

1. Conduct hypothesis test

H0 :μ=60, Ha :μ<60.

Set α = 0.5. And calculate the p-value.

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