Can you please show all work so I can understand!Thank You Suppose that the number of miles, X, until replacement is needed for a particulartype of electric car battery follows an Exponential distribution with a mean of 200,000 miles.What is the probability that a randomly selected battery lasts at least 300,000 miles?1.а.b.Suppose 10 batteries are chosen at random. What is the probability that exactly 4 of themlast at least 300,000 miles? (Hint: You will need to define a new random variable.)С.The company that manufactures the battery comes up with a new and hopefully improvedversion that lasts Y miles until replacement. A random sample of 40 of these batteries are put in testcars that are driven extensively over a period of a couple of years until the batteries need to bereplaced. The average number of miles until replacement is 320,000 with a standard deviation of82,000. At an a = .05 level, do these data provide evidence that the true average time untilreplacement for these new batteries, u, is more than 300,000? Conduct a hypothesis test todetermine your answer.

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Suppose that the number of miles, X, until replacement is needed for a particular type of electric car battery follows an Exponential distribution with a mean of 200,000 miles. What is the probability that a randomly selected battery lasts at least 300,000 miles? 1. а. b. Suppose 10 batteries are chosen at random. What is the probability that exactly 4 of them last at least 300,000 miles? (Hint: You will need to define a new random variable.)

Suppose that the number of miles, X, until replacement is needed for a particular type of electric car battery follows an Exponential distribution with a mean of 200,000 miles. What is the probability that a randomly selected battery lasts at least 300,000 miles? 1. а. b. Suppose 10 batteries are chosen at random. What is the probability that exactly 4 of them last at least 300,000 miles? (Hint: You will need to define a new random variable.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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