Module 2 Exercise 26 CP - Name Date Christina Pich Course...

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Name Christina Pich Course HLT362v Date 02/25/17 Section EXERCISE 26 Determining the Normality of a Distribution 1. Plot the frequency distribution for “Age at Enrollment” by hand or by using SPSS. 2. 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.
3. 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? Tests of Normality Kolmogorov-Smirnov a Shapiro-Wilk Statistic df Sig. Statistic df Sig. Age at Enrollment .183 15 .192 .927 15 .248 Age at 1st Arrest .138 15 .200 * .923 15 .211 Years of Education .372 15 .000 .753 15 .001 Number of Times Fired from Job .311 15 .000 .737 15 .001 *. This is a lower bound of the true significance.

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