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The weight of a randomly selected nickel is a random variable thathas a normal distribution mean 5 grams and standard deviation 0.06gram. Call this random variable X. A vending machine is designed toreject all coins with weights more than two standard deviationsabove or below the mean.
(a) Find the probability that a randomly selected nickel isrejected by the machine.
(b) Find X0such that P(5 - X0X5 + X0) = 0.8
suppose that with probability p the random variable x has the distribution n01 and with probability 1-p x has the
At the 0.05 level of significance, is there evidence that the proportion of incorrect reimbursements in the population was greater than 0.10? Discuss the underlying assumptions of the test used in (a)
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An article in Baltimore Sun claimed that the typical supermarket trip takes a mean of 22 minutes. Suppose that in an effort to test this claim, you select a sample of 50 shoppers at a Baltimore City Giant.
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suppose that 40 percent of the voters in a particular region support a candidate. find the probability that a sample of
Find the mean and standard deviation, for your sample of 40 CATCHER salaries and the corresponding 20 TEAM salaries. Are there any CATCHER salaries in your sample that fall outside that likely range? If so, list the catcher's name along with his sa..
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