HLT 362V Week 2 Module 2 Exercise 26, Determining the Normality of a Distribution
- Plot the frequency distribution for “Age at Enrollment” by hand or by using SPSS.
- How would you characterize the skewness of the distribution in Question 1—positively skewed, negatively skewed, or approximately normal? Provide a rationale for your answer.
- Compare the original skewness statistic and Shapiro-Wilk statistic with those of the smaller dataset (n = 15) for the variable “Age at First Arrest.” How did the statistics change, and how would you explain these differences?
- Plot the frequency distribution for “Years of Education” by hand or by using SPSS. hlt 362 module 2
- How would you characterize the kurtosis of the distribution in Question 4—leptokurtic, mesokurtic, or platykurtic? Provide a rationale for your answer.
- What is the skewness statistic for “Age at Enrollment”? How would you characterize the magnitude of the skewness statistic for “Age at Enrollment”?
- What is the kurtosis statistic for “Years of Education”? How would you characterize the magnitude of kurtosis for “Years of Education”?
- Using SPSS, compute the Shapiro-Wilk statistic for “Number of Times Fired from Job.” hlt 362 week 2 What would you conclude from the results?
- In the SPSS output table titled “Tests of Normality,” the Shapiro-Wilk statistic is reported along with the Kolmogorov-Smirnov statistic. Why is the Kolmogorov-Smirnov statistic inappropriate to report for these example data? hlt 362 module 2
- How would you explain the skewness statistic for a particular frequency distribution being low and the Shapiro-Wilk statistic still being significant at p < 0.05?