Job Satisfaction Very unsatisfied 5 Expected Observed 12 15 20 Somewhat unsatisfied Neutral 30 28 Somewhat 30 20 satisfied Very satisfied 20 20
The attached table shows the expected and observed distribution of job satisfaction in a random sample of 100 full-time workers. Use this table to answer the following questions.
Conduct a hypothesis test to determine if the observed distribution of job satisfaction fits the expected distribution. Which of the following is the correct statement of the hypothesis?
A. Ho: the data does not fit the expected distribution
Ha: the data fits the expected distribution
B. Ho: the data is not skewed
Ha: the data is skewed
C. Ho: the data is not numerical
Ha: the data is numerical
D. Ho: the data fits the expected distribution
Ha: the data does not fit the expected distribution
2. The test statistic used to conduct this hypothesis test follows a:
A. z-distribution
B. t-distribution
C. f-distribution
D. Chi-squared distribution
3. What is the test statistic for the hypothesis test specified in question 1 equal to? Round to three decimal places.
4. What is the p-value for the hypothesis test specified in question 1 equal to? Round to four decimal points.
5. What is the correct decision for the hypothesis specified in question 1? Use a 5% level of significance
Reject Ho/Fail to reject Ho, there is evidence the data (does/does not) fit the expected distributed
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