Average weekly demand = 68,429

Based on the weekly demand information for the last 26 weeks included in the graph, ESTIMATE the level at which you must set the production (same level for all 26 weeks) to ensure that you have a 90% probability that of demand is covered by the production.

Tips: The answer involves: 1) a table of Z-values, 2) standard deviation / variance formula, and other related statistical variables .

If you get it right you will get 50 points towards your grade. Make sure you include the calculations and reference tables where you got the information from.

I have included reference lines to better estimate the values of each weekly demand.

Fressie Orange 1 liter