The energy storage system is an important part of any electric car. An electric carcompany has decided to replace their batteries with a new type and want to examinetwo types of batteries for its new vehicles: Lithium-ion and Lead-acid batteries. Dueto the critical role of lifespan in the energy storage system, the company randomlyselected 10 samples from each type and ran an accelerated life test to obtain thelifetime of each battery type. The measured lifespan is illustrated in the table below:Lithium-ionLead-acid365370366358369362364364363357365355364366365359369355362356(a) Test the hypothesis that the mean lifespan of the two battery types are equal.Use a = 0.01 and assume equal variances.(b) Find the P-value for this test.

Answered: Image /qna-images/answer/5a1b1a76-1b14-4fa5-8547-6c80cc31e36b.jpg

Answered: The energy storage system is an…

Practical Management Science

6th Edition

ISBN:9781337406659

Author:WINSTON, Wayne L.

Publisher:WINSTON, Wayne L.

Chapter2: Introduction To Spreadsheet Modeling

Section: Chapter Questions

Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...

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No Pain Corp Omar Amman, the CEO of No Pain Corp (NPC), is under stress. They produce transcutaneus electrical nerve simulation units (TENS) for pain control. Amman faces a new opportunity and is not sure how to go about it. Recently, the the Department of Health of Canada has approved low current TENS devices to be sold directly to consumers without a doctor’s note. This will come into effect in three months. In the past, one needed a doctor’s note and could rent the device from some companies. These TENS machines, as they are called in Canada, are popular, since the older population has found them to be effective in pain control with almost no side effects. Amman can sell the device via drug-stores and pharmacies as well as on Amazon. But, Amman is not sure. Amman used to work as a supply chain manager for a power-tool company. Back then, it was a huge logistical “pain,” no pun intended, to work with large retailers and to attend to their fulfilment needs. Those retailers used to…
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Mr. King's small consulting firm specializes in providing internal control advice to his clients. All of his staff are certified internal auditors (CIAs) and want to gain expertise in a variety of industries. Jonas, his most senior consultant, always brings a less-seasoned associate with him for efficiency, training, and general camaraderie. Jonas first assesses a situation in about 4 hours and then will brainstorm ideas the client could use to address its internal control risks. The less-seasoned associate follows Jonas, listens to the half- day assessment ritual, and then helps to brainstorm improvements for the client. Jonas's labor rate is billed at $580/hour, while the associate's billing rate is half that amount. (a). Mr. King believes Jonas operates on a 90% learning curve for the "assessment" portion of his work, while his associate operates on a 95% learning curve. Create a chart outlining the number of hours each of these individuals is likely to spend on the next assessment…
Inlet pressure P₀= 700 kPa, inlet temperature T₀ = 311 K. Since the temperature To minimum cross-sectional area Aₘᵢₙ= 12 cm² outlet pressure Pₑ=448 kPa, outlet cross - sectional area Aₑ = 20 cm² What is the value of the area where the shock wave occurs?
You are serving flank steak for an event and need 200 6-oz. servings. You get samples and do yield tests. Show all calculations! After testing you find that: Vendor A Flank Steak costs $6.00 per pound. 4 pounds- trim loss of 1.5 pounds Vendor B Flank Steak costs $7.25 per pound. 4 pounds -trim loss of 1 pound. Determine what will the serving price of the flank steak be if your food cost target is 33%?
CAN YOU PROVIDE THIS IN EXCEL, I CANT FIGURE OUT HOW TO DO THE EQUATIONS IN EXCEL. One of the industrial robots designed by a leading producer of servomechanisms has four major components. Components’ reliabilities are .98, .95, .94, and .90. All of the components must function in order for the robot to operate effectively.a. Compute the reliability of the robot.b. Designers want to improve the reliability by adding a backup component. Due to space limitations, only one backup can be added. The backup for any component will have the same reliability as the unit for which it is the backup. Which component should get the backup in orderto achieve the highest reliability?c. If one backup with a reliability of .92 can be added to any one of the main components, which component should get it to obtain the highest overall reliability?
Careforall, The mayor of sickcity, claimed that his residents are very elastic and highly sensitive when the price of preventative care changes but not so sensitive when the price of inpatient care changes. To prove her point she referred back to the RAND studies. She claimed that the results of a replicated study in her town are shown below Plan Average # of preventative care visits Average # of inpatient visits Free 3.2 0.126 25% 2.54 0.122 50% 2.10 0.118 Careforall claimed that the best solution for her city is to provide free health care for all. The insurance companies replied that they will not be able to provide such a service. As a health adviser, you need to draft a proposal where…

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