Given this information we could use a z test for two, Ask an Expert

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Pretend you want to determine whether the mean weekly sales of soup are the same when the soup is the featured item and when it is a normal item on the menu. When it is the featured item the sample mean is 15 and the population standard deviation is 3 with a sample size of 27. When it is a normal item the sample mean is 10 with a population standard deviation of 6 and a sample size of 6. You want to use an alpha of .0214. Given this information we could use a Z test for two independent means and conclude that indeed the sales are different when the soup is a featured item.

A. True

B. False

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Statistics and Probability, Statistics

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