12.13Randall at Churchill Circuits (CC) has just received an emergencyorder for one of CC's special-purpose circuit boards. Five are in stock at themoment. However, when they were tested last week two were defective. Unfor-tunately, the defective circuit boards were mixed up with the three good ones.There is not enough time to retest the boards before shipment to the customer.Randall can either choose one of the five boards at random to ship to the cus-tomer or he can obtain a proven non-defective one from another plant. If thecustomer gets a bad board, the total incremental cost to CC is $10 000. Theincremental cost to CC of getting the board from another plant is $5000.a. What is the chance that the customer gets a bad board if Randall sends oneof the five in stock?b. What is the expected value of the decision to send the customer one of thefive boards in stock?c. Draw a decision tree for Randall's decision. On the basis of EV, what shouldhe do?the answers sould bea)=0.4b)=-4000c) draw a decision tree

Answered: Image /qna-images/answer/7c455e25-29a4-4fc7-802e-7bac10a5a7c7.jpg

Answered: Randall at Churchill Circuits (CC) has…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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A researcher wonders if there an association between the incidence of colds and the amount of Vitamin C taken. He recruits 93 volunteers and randomly assigns 26 of them to take 500 mg of Vitamin C, 18 of them to take 1000 mg of Vitamin C and the rest to take no Vitamin C. At the end of the study, it was determined that 30 of the volunteers did not have any colds where 15 of them were in the 500 mg group, 11 of them were in the 1000 mg group, and the rest took no Vitamin C. Test the appropriate hypothesis at a = 0.01. Round your answers to three decimal places, if necessary. Fill in the hypotheses below: Ho: There is not vitamin C taken. Ha: There is vitamin C taken. Complete the table of expected counts under the null hypothesis: No Vitamin C 500mg Vitamin C 1000mg Vitamin C No Vitamin C 500mg Vitamin C 1000mg Vitamin C At least one cold 33.194 an association between the incidence of colds and the amount of an association between the incidence of colds and the amount of 17.613 12.194…
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The Damon family owns a large grape vineyard in western New York along Lake Erie. The grapevines must be sprayed at the beginning of the growing season to protect against various Insects and diseases. Two new Insecticides have just been marketed: Pernod 5 and Action. To test their effectiveness, three long rows were selected and sprayed with Pernod 5, and three others were sprayed with Action. When the grapes ripened, 400 of the vines treated with Pernod 5 were checked for Infestation. Likewise, a sample of 400 vines sprayed with Action were checked. The results are: Number of Vines Checked (sample Insecticide Pernod 5 Action size) 400 400 Number of Infested Vines 24 40 At the 0.05 significance level, can we conclude that there is a difference in the proportion of vines Infested using Pernod 5 as opposed to Action? Hint. For the calculations, assume the Pernod 5 as the first sample. a. State the decision rule. (Negative amounts should be indicated by a minus sign. Do not round the…
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The Damon family owns a large grape vineyard in western New York along Lake Erie. The grapevines must be sprayed at the beginning of the growing season to protect against various insects and diseases. Two new insecticides have just been marketed: Pernod 5 and Action. To test their effectiveness, three long rows were selected and sprayed with Pernod 5, and three others were sprayed with Action. When the grapes ripened, 390 of the vines treated with Pernod 5 were checked for infestation. Likewise, a sample of 420 vines sprayed with Action were checked. The results are: Insecticide Number of VinesChecked (sample size) Number ofInfested Vines Pernod 5 390 23 Action 420 46 At the 0.02 significance level, can we conclude that there is a difference in the proportion of vines infested using Pernod 5 as opposed to Action? Hint: For the calculations, assume the Pernod 5 as the first sample. State the decision rule. (Negative values should be indicated by a minus sign. Do…
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