a very hot summer day, five percent of the production employees at Midland State
ID: 3067020 • Letter: A
Question
a very hot summer day, five percent of the production employees at Midland States Steel are absent from work. The production employees are rand selected for a special in-depth study on absenteeism. What is the probability of randomly selecting ten production employees on a hot summer day and finding omly that none of them are absent? a. 0.005 b. 0.344 c. 0.599 d. 0.655 73. What shape describes a Poisson distribution? a. positively skewed b. negatively skewed c. symmetrical d. all of the above 74. Carlson Jewelers permits the return of their diamond wedding rings, provided the return occurs within two weeks of the purchase date. Their records reveal that ten percent of the diamond wedding rings are returned. Five different customers purchase five rings. What is the probability that none of the rings will be returned? a. 0.250 b. 0.500 c. 0.590 d. 0.625 The production department has installed a new spray machine to paint automobile doors. As is common with most spray guns, unsightly blemishes often appear because of improper mixture or other problems. A worker counted the number of blemishes on each door. Most doors had no blemishes, a few had one; a very few had two; and so on. The average number was 0.5 per door. The distribution of blemishes followed the Poisson distribution. Out of 10,000 doors painted, about how many doors would be expected to have no blemishes? 75. a. about 500 doors b. about 3,935 doors c. about 5,000 doors d. about 6,065 doorsExplanation / Answer
ANSWER:-
72.
Given p=0.05, n=10
so the probability is (1-0.05)^10= 0.5987369
Option C is correct
73.
Positively skewed distribution
Option a is correct
74.
Probability of none returned = (1-0.1)^5 = 0.9^5 = 0.590
Option C is correct
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