11. Suppose you own a pizza place and you have been open for 6 months and you are looking at the sales levels since you opened. The sales level has been so sporadic and you feel a 3-month moving average would better depict your sales performance moving forward. You will be attempting to procure a business bank loan and you feel the banks will need to see less sporadic sales numbers for you to qualify. Please calculate the mean squared error (MSE), as well as the standard deviation of these sample means, utilizing the MSE, for your sales data. Note: I did say if you only calculated the bottom three sample mean values, that would be sufficient for calculating your mean of sample means, provided you calculated the correct "raw data" mean, and used that value to calculate your answers