Descriptive Statistics, CI, and Hypothesis Test
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[See attached data file.]
1. Use descriptive statistics to summarize the data. Your descriptive statistics should include the following items with a short explanation of what each means:
Mean
Standard Error
Median
Mode
Standard Deviation
Sample Variance
Kurtosis
Skewness
Range
Minimum
Maximum
Sum
Count
2. Develop a 95% confidence interval estimate of the mean age of the unemployed individuals in Philadelphia. Also, what does the interval mean?
3. Develop a null hypothesis and an alternative hypothesis. Conduct a hypothesis test to determine whether the mean duration of unemployment in Philadelphia is greater than the national mean duration of 14.6 weeks. Use a .01 level of significance. What does the outcome mean?
4. Is there a relationship between the age of an unemployed individual and the number of weeks of unemployment? Why or why not?
5. Please help write a conclusion that addresses your findings from questions 1-4. In other words, based on your analysis prompted by questions 1-4, what can you determine from the data and your analysis?
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