Author:
Christine Farr

http://www.devrygenius.com/product/math-533-week-8-final-exam-new

1. (TCO A)Consider the following age data, which is the result of selecting a random sample of 22 Boeing 747 airplanes that are owned by United Airlines. The age of each airplane is given in years.

17 5 5 12 8 5 8 16 14 12 22

15 5 8 17 5 4 2 22 17 20 23

a. Compute the mean, median, mode, and standard deviation, Q1, Q3, Min, and Max for the above sample data on age of Boeing 747 airplanes owned by United Airlines.

b. In the context of this situation, interpret the Median, Q1, and Q3. (Points : 33)

. 2. (TCO B) Consider the following data on new customers for AJ Auto Insurance, specifically the information of the risk level of the customer and the number of tickets they have had in the last year.

0

1

2 or more

Total

Low Risk

56

22

8

86

Medium Risk

18

40

12

70

High Risk

11

13

20

44

Total

85

75

40

200

If you choose a customer at random, then find the probability that the customer is

a. low risk.

b. low risk and had two or more tickets in the last year.

c. medium risk, given that the customer had zero tickets in the last year. (Points : 18)

. 2. (TCO B) Consider the following data on new customers for AJ Auto Insurance, specifically the information of the risk level of the customer and the number of tickets they have had in the last year.

0

1

2 or more

Total

Low Risk

56

22

8

86

Medium Risk

18

40

12

70

High Risk

11

13

20

44

Total

85

75

40

200

If you choose a customer at random, then find the probability that the customer is

a. low risk.

b. low risk and had two or more tickets in the last year.

c. medium risk, given that the customer had zero tickets in the last year. (Points : 18)

b. at least seven of these clerical workers “liked their jobs very much.”

c. fewer than five of these clerical workers “liked their jobs very much.” (Points : 18)

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