A Report Stated That the Average Number of Overtime Hours

question 28

Multiple Choice

A report stated that the average number of overtime hours for IRS workers during the past week was more than 10 hours per worker.You will test that statement with a sample of workers.What null and alternative hypotheses would you recommend here if you want to choose a null hypothesis that is skeptical of the report's number?

• A) H₀: µ > 10 units (The average overtime is more than 10 hours.)
• H_a: µ ≤ 10 units (The average overtime is no more than 10 hours.)
• B) H₀: µ = 10 units (The average overtime is 10 hours.)
• H_a: µ ≠ 10 units (The average overtime is not 10 hours.)
• C) H₀: µ ≠ 10 units (The average overtime is not be 10 hours.)
• H_a: µ = 10 units (The average overtime is 10 hours.)
• D) H₀: µ ≤ 10 units (The average overtime is no more than 10 hours.)
• H_a: µ > 10 units (The average overtime is more than 10 hours.)
• E) H₀: µ < 10 units (The average overtime is less than 10 hours.)
• H_a: µ > 10 units (The average overtime is more than 10 hours.)

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