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A coffee manufacturer is interested in whether the mean daily consumption of regular coffee drinkers is less than that of decaffeinated - coffee drinkers. Assume
A coffee manufacturer is interested in whether the mean daily consumption of regular coffee drinkers is less than that of decaffeinated - coffee drinkers. Assume the population standard deviation for those drinking regular coffee is 1.20 cups per day and 1.36 cups per day for those drinking decaffeinated coffee. A random sample of 50 regular coffee drinkers showed a mean of 4.35 cups a day. A sample of 40 decaffeinated coffee drinkers showed a mean of 5.84 cups per day. Use a 0.05 level of signicance. Question 1: The Alternate Hypothesis appropriate for this problem is: 0 H1: pca- pdecaffs 0 O HO. \"Gaff - \"deca 0
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