A coffee manufacturer is interested in the mean daily consumption of regular-coffee drinkers and decaffeinated coffee drinkers. The random sample of 50 regular-coffee drinker show a mean of 3.84 cups per day. A sample of 40 Decaffeinated-coffee drinkers showed a mean of 3.35 cups per day. The sample standard Deviation for those drinking regular coffee is 1.20 cups per day and 1.36 cups per day for those from the decaffeinated coffee. Assume the population standard Deviations are equal. At the 5% significance level, is the mean daily consumption of regular-coffee drinkers greater than that of deCaffeinated-coffee? What is the appropriate Alternative hypothesis and P-value for this hypothesis test.