Prior to the debut oflustin Bieber's album \"Believe\

Prior to the debut of Justin Bieber's album "Believe", Billboard projected it would sell 4 copies in Week 1 and 250,000 copies in its Week 2. Note that album sales are not expected to be seasonal. a. b. c. Suppose that Billboard is using a static linear model to predict the album sales. What values is Billboard using for the level and trend to make the estimates for week 2? Hint: To predict this, you need to determine which trend (change in sales per week) and level (demand at T=O) Billboard is using. If Billboard is using a static linear model, what is the forecast for week 3 sales? Do you think a static linear model is a reasonable method for predicting sales of Bieber's album in future weeks (e.g., weeks 4 through 10)? Why or why not?