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A company produces component parts for an engine. Parts specifications suggest that 95% of items meet specifications. The parts are shipped to customers in lots of 200. Let X represent the number of defectives in a lot. Use normal approximation to find the following probabilities:
(a) What is the probability that more than 187 items will be non-defective in a given lot?
(b) What is the probability that at least 8 but less than 16 items will be defective in a given lot?
Determine the most economical monthly shipping schedule. Provide a table showing the routes and total costs.
Suppose the weights of full boxes of a certain kind of cereal are normally distributed with a population standard deviation of 0.29 ounces.
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each computer chip made in a certain plant will independently be defective with probability .25. if a sample of 1000
kelly bought 8 apples3 pears and 13 oranges and brought them home in a grocery bag. if she picks one from the bag
1. at your supermarket the typical shopper spends 18.93 with a standard deviation of 12.52. you are wondering what
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In the following regression, X = total assets ($ billions), Y = total revenue ($ billions), and n = 64 large banks. (a) Write the fitted regression equation.
At least half the patients are under 15 years old? First, describe how this can be modelled as a binomial distribution with 8 trials, where success is visitor age is under 15 years old and the probability of success is 20 percent.
The production manager at Bellevue Steel, a manufacturer of wheelchairs, wants to compare the number of defective wheelchairs produced on the day shift with the number on the afternoon shift.
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