test#3.docx - Startedon State Completedon Timetaken Grade...

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Started on Friday, March 30, 2018, 1:11 AM State Finished Completed on Friday, March 30, 2018, 2:39 AM Time taken 1 hour 27 mins Grade 110.40  out of 115.00 ( 96 %) Question 1 Correct 4.60 points out of 4.60 Flag question Question text A total of 60% of the customers of a fast food chain order a hamburger, French fries, and a drink. If a random sample of 15 cash register receipts is selected, what is the probability that 10 or more will  show that the above three food items were ordered? Select one: a. 1.000 b. 0.186 c. 0.403  d. 0.000 Feedback The correct answer is: 0.403 Question 2 Correct 4.60 points out of 4.60
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Flag question Question text A new car was put into production. It involved many assembly tasks. Each car was inspected at the  end of the assembly line and the number of defects per unit was recorded. For the first 100 cars  produced, there were 40 defective cars. Some of the cars had no defects, a few had one defect, and so on. The distribution of defects followed a Poisson distribution. Based on the first 100 cars  produced, about how many out of every 1,000 cars assembled should have one or more defects? Select one: a. About 660 b. About 165 c. About 630 d. About 330  Feedback The correct answer is: About 330 Question 3 Correct 4.60 points out of 4.60 Flag question Question text Sweetwater & Associates write weekend trip insurance at a very nominal charge. Records show that the probability that a motorist will have an accident during the weekend and file a claim is 0.0005.  Suppose they wrote 400 policies for the coming weekend, what is the probability that exactly two  claims will be filed? Select one: a. 0.8187
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b. 0.2500 c. 0.0164  d. 0.0001 Feedback The correct answer is: 0.0164 Question 4 Correct 4.60 points out of 4.60 Flag question Question text 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 10% of the diamond wedding rings  are returned. Five different customers buy a wedding ring. What is the probability that none of the  customers return a ring? Select one: a. 0.250 b. 0.073 c. 0.590  d. 0.500 Feedback The correct answer is: 0.590 Question 5 Correct 4.60 points out of 4.60
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Flag question Question text A true/false test consists of six questions. If you guess the answer to each question, what is the  probability of getting all six questions correct? Select one: a. 0 b. 0.016  c. 0.062 d. 0.250 Feedback The correct answer is: 0.016 Question 6 Correct 4.60 points out of 4.60 Flag question Question text David's gasoline station offers 4 cents off per gallon if the customer pays in cash and does not use a  credit card. Past evidence indicates that 40% of all customers pay in cash. During a one-hour period,
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  • Fall '14
  • c. σ, b. µ, Sweetwater & Associates, Carlson Jewelers, d. α

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