please help, this is all one question

Suppose a creamery sells three types of ice cream: vanilla, nut covered vanilla, and chocolate covered vanilla. The daily demand of each type of ice cream is normally distributed and independent of each other. The means and standard deviations are given in the following table: Standard Mean deviation Vanilla 16 Nut covered 10 vanilla Chocolate covered vanilla 25 5 The creamery orders all types of ice cream from the same supplier and the replenishment lead time is one day. The creamery reviews its inventory of ice cream every morning. A service level of 80% is targeted to be met for all ice cream. (Please round How much safety stock of vanilla ice cream does the creamery need to carry: your answer up and keep two decimal places, e.g., 1.041~1.05) 20 Continued from the previous question, how much safety stock of nut covered vanilla ice cream does the creamery need to carry: (Please round your answer up and keep two decimal places, e.g., 1.041 1.05) Mean Standard deviation Vanilla 16 4 Nut covered 20 10 vanilla Chocolate 5 covered vanilla 25 Continued from the previous question, how much safety stock of chocolate covered vanilla ice cream does the creamery need to carry: (Please round your answer up and keep two decimal places, e.g., 1.041~1.05) Standard Mean deviation Vanilla 16 4 Nut covered 20 10 vanilla Chocolate covered vanilla 25 5 Instead of ordering three types of ice cream from the supplier, the creamery decides to order vanilla ice cream only and dip them in nuts or chocolate on demand. Following this strategy, how much safety. stock of vanilla ice cream does the creamery need to carry, in order to achieve a service level of 80% for all ice creams? (Hint: use rule of variances; please round your answer up and keep two decimal places, e.g., 1.041 1.05) ANSWER: Mean Standard deviation 16 4 20 10 25 5 Vanilla. Nut covered vanilla Chocolate covered vanilla Which of the two strategies examined in previous questions do you think require less total safety stock of ice cream? O Order three types of ice cream from the supplier O Order vanilla ice cream only and dip it in nuts or chocolate on demand