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Specifically, 68% of Gen Y people have a say in computer purchases. Suppose you select a sample of 100 Gen Y respondents.
a. What is the probability that the sample percentage will be contained between 65% and 75%
b. The probability is 90% that the sample percentage will be contained within the symmetrical limits of the population percentage?
c. The probability is 95% that the sample percentage will be contained within what symmetrical limits of the population percentage?
d. Suppose you selected a sample of 400 respondents. How does this change your answers in (a) through (c)
A sample of 100 orders revealed that 82 were delivered within the promised time. At the .10 significance level, can we conclude that less than 90 percent of the orders are delivered in less than 10 minutes?
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Finnish Furniture manufactures tables in facilities located in three cities- Reno, Denver, and Pittsburgh. The tables are then shipped to three retail stores located in Phoenix, Cleveland, and Chicago.
an article in the 1993 volume of the transactions of the american fisheries society reports the results of a study to
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The town clerk, who monitors the voting booths, informed him that all the voters in the entire town registered at a recent election, and 310,000 votes were counted.
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Calculate the probability that a randomly chosen sample of 17 games would have a sample mean less than the one you calculated in this exam. Use the standard normal distribution.
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