Customer Service is very important to Jane and John's Goodie Baskets. In fact the target for customer service level is 99%. The following are the sales results to the forecast by month for last year.

Period	Forecast	Actual
Sept	6000	12000
Oct	6000	4000
Nov	6000	6000
Dec	6000	15000
Jan	6000	10000
Feb	6000	4000
Mar	6000	6000
Apr	6000	5000
May	6000	3000
Jun	6000	2000
Jul	6000	1000
Aug	6000	4000

b) What is standard deviation? c) What is the tracking signal per month? d) The company uses a trigger of +/- 4 , which period(s) should the forecast be looked at? e) Reviewing the actual versus forecast for last year, do you agree with Jane and John's Goodie Baskets' forecasting technique? Give your recommendations to improve the forecast accuracy. (I am looking for a qualitative recommendation; it does not need to be supported by a revised quantitative forecast.) f) Is the error random or bias? g) For Jane and John's Goodie Baskets to maintain their customer service goal above, how much safety stock should they maintain? What are the issues with carrying this level of safety stock given the product they are building?