Question 22 of 57 2.0 Points
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 7 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.
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