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Question: Suppose that the height of an American female is normally distributed with a mean of 64 inches and a standard deviation of 4 inches. We observe the height of 500 American females.A. What is the probability that fewer than 35 of the 500 women will be less than 58 inches tall?B Let X be the number of the 500 women who are less than 58 inches tall. Find the mean and standard deviation of X.
beverly mills has decided to lease a hybrid car to save on gasoline expenses and to do her part to help keep the
A random sample of 50 female CFO's and a random sample of 40 male CFO's are selected. Find the expected value of the sample mean difference.
question assume that breast cancer affects .8 percent of the female population between 40 and 50 years of age. there
use the rule of 70 to find the approximate doubling time for a population whose annual growth rate is 0.7 u.s.? and
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Below are the sample times in minutes. At the .05 significance level, can we conclude that there is a difference in their mean times?
five workers are available to perform four jobs. the time it takes each worker to perform each job is given in
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Calculation of Mean and Standard Deviation for Oxygen
For a given sample size, the standard error of the sample mean is 10 grams. With other factors unchanged, to what extent must the sample size be increased if the standard error of the sample mean is to be just 5 grams?
A man buys a car for £4500 and pays a deposit of 20 per cent. Interest is charged 2.5 per cent on the outstanding balance. He repays this balance over 24 months. How much is the monthly instalment (to the nearest penny)?
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