Question

6. -/1 points DevoreStat9 5.E.042. My Notes Ask Your Teacher A company maintains three offices in a certain region, each staffed by two employees. Information concerning yearly salaries (1000s of dollars) is as follows: Office 1 1 2 2 3 3 Employee 1 2 3 4 5 6 Salary 36.7 40.6 37.2 40.6 32.8 36.7 (a) Suppose two of these employees are randomly selected from among the six (without replacement). Determine the sampling distribution of the sample mean salary 7. (Enter your answers for p(x) as fractions.) * 34.75 0 36.70 36.95 38.65 0 40.60 PC) is O O O O (b) Suppose one of the three offices is randomly selected. Let X1 and X2 denote the salaries of the two employees. Determine the sampling distribution of x. (Enter your answers as fractions.) X 34.75 38.65 38.90 (c) How does E() from parts (a) and (b) compare to the population mean salary u? (8) from part (a) is --Select. u, and e) from part (b) is ---Select u. Need Help? Read It Talk to a Tutor

Answer 1

Ans: Sample sample mean 40.6 38.65 36.7 36.7 37.2 36.95 36.7 38.65 34.75 36.7 36.7 36.7 36.7 37.2 38.9 46.6 -32.8 36.7 40.6 40.6 40.6 37.2 37.2 37.2 40.6 40.6 40.6 36.7 38.65 38.9 35 36.95 36.7 38.65 32.8 36.7 32.8 32.8 36.7 34.75

34.15 35 30.) 36.95 38.85 389/106) (G) | 2/5 Y 3/5 | 15 | 1/5 % 75 6) As an office has equal probability of being selected which is equal to Y3 38.65 34.75 38.90 c) E(F) from part @ as equal to in' and E (=) from part 6 is equal to il