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A Researcher Wanted to Determine If Using an Octane Booster

Question 21

Multiple Choice

A researcher wanted to determine if using an octane booster would increase gasoline mileage.A random
sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks
with the booster. A researcher wanted to determine if using an octane booster would increase gasoline mileage.A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster. -What is the critical value using A) -1.782 B) -1.761 C) -1.943 D) -1.895
-What is the critical value using A researcher wanted to determine if using an octane booster would increase gasoline mileage.A random sample of seven cars was selected; the cars were driven for two weeks without the booster and two weeks with the booster. -What is the critical value using A) -1.782 B) -1.761 C) -1.943 D) -1.895


A) -1.782
B) -1.761
C) -1.943
D) -1.895

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