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.
Dear Student Please find... View the full answer