3. Below you are given the first four values of a monthly time series of sales. You want to predict the sales of May basedthe time series data.MonthTime Series Value YtJanuary120February135March150April175 b) When a three-month weighted moving average (W1=0.5, W2 = 0.3, and W3 = 0.2) is used, what is the forecast on the sales in May. (Hint: Ft+1= W1Yt+ W2Y (t- 1)+ W3Y (t-2) )(round to whole number)For the toolbar, press ALT+F10 (PC) or ALT+FN+F10 (Mac).BIUSParagraphArial10ptIA.E.

Data for the months January, February, March, April are given. The time series value is Yt

Answered: b) When a three-month weighted moving…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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The amount of time adults spend watching television is closely monitored by firms because this helps to determine advertising pricing for commercials. Complete parts (a) through (d). (a) Do you think the variable "weekly time spent watching television" would be normally distributed? If not, what shape would you expect the variable to have? A. The variable "weekly time spent watching television" is likely normally distributed. B. The variable "weekly time spent watching television" is likely skewed right, not normally distributed. C. The variable "weekly time spent watching television" is likely symmetric, but not normally distributed. D. The variable "weekly time spent watching television" is likely skewed left, not normally distributed. E. The variable "weekly time spent watching television" is likely uniform, not normally distributed. (b) According to a certain survey, adults spend 2.35 hours per day watching television on a weekday. Assume that the standard deviation for "time spent…
The cost of fuel is the largest component of cost of ownership for most vehicles. Fuel cost is (almost) inversely proportional to gas mileage; higher gas mileage means lower fuel cost and vice-versa. If you keep track of the number of miles driven on each tank of gas as well as how much gas is purchased, it is easy to calculate gas mileage; many cell phone apps exist to track this. The data in the following table is the gas mileage for Mr. Hebert's 2015 Jeep Wrangler Unlimited. 12.85 14.98 15.36 17.09 18.86 13.28 15.11 15.62 17.50 19.07 13.48 15.12 15.65 17.66 20.91 14.65 15.13 16.41 18.17 21.17 14.71 15.14 16.80 18.27 22.11 e. Does this data show any skew or symmetry? A. Left - Skewed B. Right - Skewed C. Symmetrical
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b) When a three-month weighted moving average (W=0.5, W2 = 0.3, and W3 = 0.2) is used, what is the forecast on the sales in May. (Hint: Ft+1= W,Yt+ W2Y (t- 1 + W3Y (t-2) (round to whole number)