Draw the ER diagram for the following businessrules:a customer may buy many housestheater must show at least one moviea house should have at least one room andthe room is belonging to only one house

Creating an Entity-Relationship (ER) diagram based on your description involves identifying the…

Answered: Draw the ER diagram for the following…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter12: Queueing Models

Section: Chapter Questions

Problem 59P

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Problem 1Human visual inspection is necessary in many quality engineering contexts and is naturallysubject to subjectivity. This is especially true for the inspection of solder joints on circuit boards,as there are numerous types of solder defects, as well as a degree to which a joint possessesone or more defect. Consequently, even highly trained inspectors can disagree on the status ofa particular joint. In a batch of 10,000 such joints, inspector A found 724 to be defective,inspect B found 751 to be defective, and 1159 of the joints were judged to be defective by atleast one of the inspectors. Suppose that one of the 10,000 joints is randomly selected.a. What is the probability that the selected joint was judged to be defective by neither ofthe two inspectors?b. What is the probability that the selected joint was judged to be defective by inspector Bbut not by inspector A?
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Problem 3-4 (Static) An electrical contractor's records during the last five weeks indicate the number of job requests: 2 3 22 18 Week: Requests: 1 20 4 21 Click here for the Excel Data File Predict the number of requests for week 6 using each of these methods: a. Naive. 5 22 Answer is complete but not entirely correct. Number of requests 24 X requests b. A four-period moving average. (Round your answer to 2 decimal places.). Answer is complete but not entirely correct. Number of 23.25 c. Exponential smoothing with a = 0.30. Use 20 for week 2 forecast. (Round your intermediate calculations and fina mal nisenel
a) Suppose you walk into a large supermarket at 2 am with a friend. Your friend says, "I can't believe that these stores stay open all night. Only one out of fifteen checkout lines is open. There can't be more than ten shoppers in this store. It just doesn't make any sense for this store to be open all night." What conditions must be true for it to be to the advantage of the supermarket to stay open all night? b) Your friend has a large garden and grows fresh fruit and vegetables to be sold at a local "farmer's market." Last year your friend was the only worker in the garden, without any additional workers. However, this year your friend hired a worker and production more than doubled. He comments "Next summer, I think I'll hire another two workers (so total workers including myself would go up from 2 to 4) and my output should again more than double". Is it likely that he could hire more workers and always continue to reap greater than proportional increases in production? Why?
a. How many nurses should be working each month to most closely match patient forecasts?b. Suppose the hospital does not want to change its policy of not increasing the nursing staff size by more than 10 percent in any month. Suggest a schedule of nurse staffing over the four months that meets this requirement and also meets the need for nurses each month.
Installing fire-extinguishers is not a requirement in most households. With a fire distinguisher in a house, in the event of a fire, the fire can be put off quickly. This protect the life and property of the household that install it. This also prevent the fire from spreading to the neighbourhood and also benefits the neighbourhood. (a) Describe and explain with a market diagram for fire- extinguisher. Do you think the fire-extinguisher market is efficient? Explain. (b)If the fire-extinguisher market is not efficient, suggests one method to make it efficient.
How would you manually write a mathematical model this?
What does the intercept mean in equation below ? X: C18 (total employees hours worked per week) versus Y: C19 (clinic patients seen per week). Equation: y=0.49x+0.84 Slope:0.49 Intercept:0.84 Does the intercept mean it is 0.84 and predicts how many patients seen if zero hours were workeed. In this case it has no meaning , it is only a line fitting?
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Draw the ER diagram for the following business rules: a customer may buy many houses theater must show at least one movie a house should have at least one room and the room is belonging to only one house