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The price of oranges each week in the Wal-Mart is normally distributed with a mean (µ) of 37.8 cents per pound and a standard deviation (?) is 3 cents. 1-What is the probability that oranges will sell for between 30 and 35 cents per pound in any given week? 2- Sam makes it a policy not to buy oranges unless the price is 33 cents or less per pound. What proportion of the time would he buy oranges? 3- Sara loves oranges. She is willing to buy oranges 95% of the time. But, she doesn't love them enough to buy them when prices are the highest. What is the maximum price per pound that she should have to pay in order to buy oranges 95% of the time?
in statistics you learn about type i and type ii errors. a type i error occurs when a statistical test rejects a
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An analyst wishes to include number of older siblings in family as a predictor variable in a regression analysis of factors affecting maturation in eighth graders.
A ten year old survey found that the average income of sole proprietor CPA's was $74,914. To update this information, a new survey of 112 proprietor CPA's was taken and it showed a mean of $74,695.
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A market researcher wants to find the 99% Confidence Interval for the average number of hours people spend online each day.
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