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The branch manager of an outlet (Store 1) of a nationwide chain of pet supply stores wants to study characteristics of her customers. In particular, she decides to focus on two variables: the amount of money spent by customers and
asked by Student on July 28, 2008 
Stats
The branch manager of an outlet of a nationwide chain of pet supply stores wants to study characteristics of her customers. In particular, she decides to focus on two variables: the amount of money spent by customers and whether
asked by Student on July 29, 2008 
Data Analysis
A) An insurance company wants to estimate the proportion of people unsatisfied with their new telephone help service. A survey of 200 callers revealed 45 were unsatisfied with the service. Construct by hand a 95% confidence
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Suppose that the number of customers who enter a supermarket each hour is normally distributed with a mean of 540 and a standard deviation of 150. The supermarket is open 14 hours per day. What is the probability that the total
asked by June on February 13, 2009 
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The number of customers who enter a supermarket each hour is normally distributed with a mean of 600 and a standard deviation of 200. The supermarket is open 16 hours per day. what is the probability that the total number of
asked by Tony on December 8, 2010 
ms sue?
Suppose that in a population of shoppers, the proportion of people who had visited supermarket A last month is 0.22. Also that in the same population, the proportion of people who had visited supermarket B last month is 0.46. The
asked by Jay on May 17, 2016 
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Select Yes or No to state whether each data set is likely to be normally distributed. Please help! the number of coupons used at a supermarket. > I believe YES. the weights of the pumpkins that are delivered to a supermarket.
asked by Sean on May 30, 2018 
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A human resources manager at a large company wants to estimate the proportion of employees that would be interested in reimbursement for college courses. If she wishes to be 95% confident that her estimate is within 5% of the true
asked by Chad on April 15, 2010 
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A DVD rental store wants to know what proportion of its customers are under age 21. A simple random sample of 500 customers was taken, and 375 of them were under age 21. Presume that the true population proportion of customers
asked by Statistics on April 12, 2015 
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The manager of Alco wants to establish the proportion of time that the stock clerks spend making price changes on previously marked merchandise. The manager wants a 98% confidence that the resulting estimate will be within 5% of
asked by Anonymous on May 1, 2012