3. The Haguey company manufactures three types of smartphones. A sales report indicates that the HA model has 41% of total sales, the HB model 38% of total sales, and the HG model the rest. claims for failures in the internet connection. It is known from warranty records that only 3%, 2% and 5% of the respective smartphones have claims for failures in the internet connection. a) If a smartphore warranty claim is chosen at random, what is the probability that it is from the HG model? b) What is the probability of not receiving a claim due to failures in the internet connection of a smartphone?

3. The Haguey company manufactures three types of smartphones. A sales report indicates that the HA model has 41% of total sales, the HB model 38% of total sales, and the HG model the rest. claims for failures in the internet connection. It is known from warranty records that only 3%, 2% and 5% of the respective smartphones have claims for failures in the internet connection. a) If a smartphore warranty claim is chosen at random, what is the probability that it is from the HG model? b) What is the probability of not receiving a claim due to failures in the internet connection of a smartphone?

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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5. The city of Hafr-Al Batin is in process of approving a construction site for a new 220,000ft2 stadium. Two sites have been proposed. The table provides data about proposed (contiguous) properties in both sites together with the acquisition cost. Site 1 Site 2 Property Area (1000ft²) Cost ($1000) Area (1000ft²) Cost ($1000) 20 1000 80 2800 50 21000 60 1900 50 2350 2800 30 1850 2500 60 2950 1 2 3 4 2 5 50 70 Partial acquisition is possible. At least 80% of property 4 must be acquired if sitel is selected, and at least 60% of property 3 is acquired if site 2 is selected. Although site 1 property is more expensive, the construction cost is less than site 2 because of better existing infrastructure at site 1. Construction cost at site 1 is $30 million and at site 2 is $32 million. Determine LP model(s) to decide which site is cheaper for constructing the new stadium.
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4.6
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12) Thirty six percent of all assembly line mechanical robots are claimed for services by the technicians to be sent out to the manufacturer all under the issued warranty at the time of purchase. Out of these robots sent under warranty, 45% will be repaired and sent back to the factory and 55% will be replaced under warranty at no cost. Suppose the company you are working for recently ordered 15 of these mechanical robots. The CEO agreed to sign a five years purchasing contract if only the probability of sending back three of these robots are LESS than 0.24 during the life of the contract. Will she approve the purchasing contact? [Hint: you are trying to find the probability of exactly three robots will eventually be replaced under warranty as she will not sign off if such probability for three is more than 24%.]
Sharp Outfits is trying to decide whether to ship some customer orders now via UPS or wait until after the threat of another UPS strike is over. If Sharp Outfits decides to ship the requested merchandise now andthe UPS strike takes place, the company will incur $60,000 in delay and shipping costs. If Sharp Outfits decides to ship the customer orders via UPS and no strike occurs, the company will incur $4000 in ship-ping costs. If Sharp Outfits decides to postpone shipping its customer orders via UPS, the company will incur $10,000 in delay costs regardless of whether UPS goes on strike. Let p represent the probabilitythat UPS will go on strike and impact Sharp Outfits’s shipments.a. For which values of p, if any, does Sharp Outfits minimize its expected total cost by choosing to postpone shipping its customer orders via UPS? b. Suppose now that, at a cost of $1000, Sharp Outfits can purchase information regarding the likelihood of a UPS strike in the near future. Based on similar…
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