Question 4 10 pts Problem 515802: Do not include anything other than numbers in your responses. For example, do not include comma or dollar sign in your numbers. As a rule of thumb, keep 2 decimal places for larger numbers and 3 decimal places for smaller numbers less than 1. Consider the following data. We want to monitor the forecasts. Period Demand Forecasts 1 270 2 249 270 3 299 249 4 290 299 5 306 290 Calculate the UCL and LCL for the appropriate control chart to control magnitude of errors? Calculate the cumulative error, MAD, and tracking signals of periods 2 through 5 and determine if the forecasts are biased. Keep two decimal places in your calculations. MADs Period Errors Cumulative Errors 1 Tracking Signals 2 .. 3 4 5 .. Are forecast errors biased? (Yes/No)