A milk company claims that their milk sells for 3 dollars a gallon, with a standard deviation of 75 cents. I collect a sample and find that in my sample milk costs 4.75 a gallon. Find the Z score and tell me whether or not I can reject the manufacturer claim. a. Z = 2.33, cannot reject b. Z = -2.33, cannot reject c. Z = -2.33, can reject d. Z = 2.33, can reject