A researcher wants to know if there is a difference between the mean amount of sleep that people get for various types of employment status. The table below shows data that was collected from a survey. Full Time Worker Part Time Worker Unemployed 6 6 7 5 6 7 8 9 9 7 6 8 8 8 8 8 8 8 6 6 8 8 7   6 9   Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of α=0.01α=0.01. H0: μ1=μ2=μ3H0: μ1=μ2=μ3 H1:H1: At least two of the means differ from each other. For this study, we should use Select an answer 2-PropZTest 2-PropZInt 1-PropZInt 2-SampTInt 1-PropZTest T-Test χ²-Test ANOVA χ²GOF-Test TInterval 2-SampTTest  The test-statistic for this data =  (Please show your answer to 3 decimal places.) The p-value for this sample =  (Please show your answer to 4 decimal places.) The p-value is Select an answer less than (or equal to) alpha greater than alpha  αα  Base on this, we should Select an answer accept the null hypothesis fail to reject the null hypothesis reject the null hypothesis  hypothesis As such, the final conclusion is that... There is insufficient evidence to support the claim that employment status is a factor in the amount of sleep people get. There is sufficient evidence to support the claim that employment status is a factor in the amount of sleep people get.

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Author:Amos Gilat
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A researcher wants to know if there is a difference between the mean amount of sleep that people get for various types of employment status. The table below shows data that was collected from a survey.

Full Time Worker Part Time Worker Unemployed
6 6 7
5 6 7
8 9 9
7 6 8
8 8 8
8 8 8
6 6 8
8 7  
6 9  

Assume that all distributions are normal, the three population standard deviations are all the same, and the data was collected independently and randomly. Use a level of significance of α=0.01α=0.01.

H0: μ1=μ2=μ3H0: μ1=μ2=μ3
H1:H1: At least two of the means differ from each other.

  1. For this study, we should use Select an answer 2-PropZTest 2-PropZInt 1-PropZInt 2-SampTInt 1-PropZTest T-Test χ²-Test ANOVA χ²GOF-Test TInterval 2-SampTTest 
  2. The test-statistic for this data =  (Please show your answer to 3 decimal places.)
  3. The p-value for this sample =  (Please show your answer to 4 decimal places.)
  4. The p-value is Select an answer less than (or equal to) alpha greater than alpha  αα 
  5. Base on this, we should Select an answer accept the null hypothesis fail to reject the null hypothesis reject the null hypothesis  hypothesis
  6. As such, the final conclusion is that...
    • There is insufficient evidence to support the claim that employment status is a factor in the amount of sleep people get.
    • There is sufficient evidence to support the claim that employment status is a factor in the amount of sleep people get.
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