The manager of a music and video retail chain wants to forecast DVD sales for September based on the following historical data: Month Sales April 15,000 May 16,000 June 18,000 July 20,000 August 21,000 What is the forecast for September using exponential smoothing with alpha?

In a hypothetical economy, a market basket consists of one laptop and two dvd players. in the base year, 2010, the price of a dvd player was $200, and the price of a laptop was $500. in 2015, the price of a dvd player was $380, and the price of a laptop was $750. the cpi for 2010 was