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Long Life Battery Company makes car batteries. After years of product testing, the company knows their batteries follow a normal distribution with a mean lifespan of 45 months and a standard deviation of 7 months. The company guarantees that batteries with a short lifespan will be replaced free of charge. If Long Life does not want to make refunds for more than 10% of its batteries under the full-refund guarantee policy, for how long should the company guarantee the batteries?
What equation should be used for this problem
z= x- µ σ or p(x)=(nCx)px 1- p ( )n-x or x = µ + z σ or z= x - µ σ n e) None of the above are correct.
Consider the estimation of an unknown parameter ? = 0 under the squared error loss. Show that if T and U are two estimators
More generally, suppose that there is one "you lose" piece of paper, with "weight" v, and there are n blank pieces of paper, each with "weight" w.
in a tire factor the quality control inspector examines a randomly chosen sample of 16 tires. when more than one
then lengths of a certain component are normally distributed with a mean of 250 mm and a standard deviation of .6mm.
What's wrong? Each of the following statements contains an error. Describe each error and explain why the statement is wrong.
twenty-five samples of 100 items each were inspected when a process was considered to be operating satisfactorily. in
Write a one-page report to Ms. Gupta presenting your conclusions regarding the market performance of Brand 1.
The Prevention of Ear Infections On the basis of its biochemical properties, Finnish researchers hypothesized that regular use of the sweetener xylitol might.
A quality-control inspector for a food-processing firm needed assurance that the cans of fruit in a production run were filled to capacity.
The probability that a consumer entering a retail outlet for microcomputers and software packages will buy a computer of a certain type is 0.15.
Consider the problem of finding a shortest (forward) path in a graph with given arc lengths, subject to the constraint that the path passes through every node exactly once (the choice of start and end nodes of the path is subject to optimization).
How many 5-card hands are possible from a standard deck of 52 playing cards if the cards are drawn without replacement?
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