HW 2 Solutions

HW 2 Solutions - 2 Problem 2.90 BA 240 W Li Homework 2...

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BA 240 W. Li Homework 2 Solution 1 Homework 2 Solution Slide #50: Q3 = (3/4)(15+1) = 12 th – The 12 th # from the ordered list is 9 80 Percentile = (80/100)(15+1) = 12.8 = 13 th – The 13yj # from the ordered list is 9 Slide #52: z-score for 10: (10-7.6)/2.324 = 1.033 z score is positive, we conclude that the score of 10 lies a distance of 1.034 standard deviations above. z-score for 5: (5-7.6)/2.324 = -1.119 z score is positive, we conclude that the score of 5 lies a distance of -1.119 standard deviations above. z-score for 5: Problem 2.34:
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BA 240 W. Li Homework 2 Solution
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Unformatted text preview: 2 Problem 2.90: BA 240 W. Li Homework 2 Solution 3 Problem 2.130: a) Highest salary is 75.0: z-score= 46 . 2 22 . 9 33 . 52 75 Lowest salary is 35.0: z-score= 88 . 1 22 . 9 33 . 52 35 The z-score of the highest salary is 2.46, which is greater than 2, but smaller than 3. So, the highest salary is considered as a normal outlier. . b) SALARY 80 70 60 50 40 30 Boxplot of SALARY Using Minitab, the box-plot has been shown above, which contains no outliers. BA 240 W. Li Homework 2 Solution 4 Problem 2.176:...
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This note was uploaded on 05/15/2011 for the course BA 240 taught by Professor Li during the Spring '08 term at Bellevue College.

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HW 2 Solutions - 2 Problem 2.90 BA 240 W Li Homework 2...

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