Question 1
The average manufacturing work week in metropolitan Chattanooga was 40.1 hours last year. It is believed that the recession has led to a reduction in the average work week. To test the validity of this belief, the hypotheses are
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H0: μ< 40.1 Ha: μ≥ 40.1
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H0: μ≥ 40.1 Ha: μ< 40.1
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H0: μ> 40.1 Ha: μ≤ 40.1
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H0: μ= 40.1 Ha: μ≠ 40.1
Question 2
The average monthly rent for one-bedroom apartments in Chattanooga has been $700. Because of the downturn in the real estate market, it is believed that there has been a decrease in the average rental. The correct hypotheses to be tested are
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H0: μ≥ 700 Ha: μ< 700
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H0: μ = 700 Ha: μ≠ 700
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H0: μ> 700 Ha: μ≤700
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H0: μ< 700 Ha: μ≥ 700