In Recent Years the Average Speed Along a Dangerous Stretch

question 60

Multiple Choice

In recent years the average speed along a dangerous stretch of Highway 26 has been reported to be 55.8 mph.You plan to take a sample of cars along that stretch of highway to determine if the average speed recently is different from the reported average.What hypotheses would be appropriate for a hypothesis test here? Use a "status quo" approach to choose your null hypothesis.

• A) H₀: µ = 55.8 mph
• H_a: µ ≠ 55.8 mph
• B) H₀: µ ≠ 55.8 mph
• H_a: µ = 55.8 mph
• C) H₀: µ > 55.8 mph
• H_a: µ ≠ 55.8 mph
• D) H₀: µ < 55.8 mph
• H_a: µ = 55.8 mph
• E) H₀: µ > 55.8 mph
• H_a: µ = 55.8 mph

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