Use the following to answer questions 9- 10 A sample was taken of the salaries o

Question

Use the following to answer questions 9- 10 A sample was taken of the salaries of 20 boxplot of the salaries (in thousands of dollars) for this year 50 30 - 9. Based on this boplot, whch of the following statements ine? a. The maximum salary is between 560,000 and $70,000 b. The minimum salary is $20,000 c. The range of the salarics is about $50,000 d. The median salary is about $40,000 _10. Based on this boxplot, the five-mnter senary is a. 28, 39, 48, 60.5, 77 b. 28, 41, 48, 58, 77 e. 28, 39, 51, 58, 77 d. 28, 41. 51, 60.5, 77 11. Ifj) = 2 + 3x1 + 5xz-8xa, then controlling for x2 and x, the change in the etimated mcan of y when x, increase from 10 to 20 a equals 30 b. oquals 0.3 c Cannot be given-depends on specific values of x2 and x d Must be the same as when we ipre x2 and x3 -12. There is interaction in a 2-way ANOVA model when a· The 2 factors are not associated. b. Both factors have significant effects in the model without interaction e. The difference in true means betwoon 2 caegories of one factor varies among the categories of the other factor d. The mean square for interaction is ahout the same size as the mean square eTOE Shift Alt

Explanation / Answer

9. (c) Range is maximum - minimum

10. (a) 28, 39, 48, 60.5, 77

11. (a) 20 - 10 = 10 and 10 * 3 = 30

12. (d) Mean sq. interaction equals mean square error.

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