(a) Calculate the 4-year moving average of the following data related to the sales in a department store.

Consider the following time series: Year 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 Sales 4 6 5 8 9 5 4 3 7 8 Calculate a three-year moving average (MA(3)) for the second subset of three years (i.e. 2011-2013). Round your final answer to two decimal places.

A production manager wants to assess the growth in the purchases over the past four months for a company. They have recorded the following data in an Excel spreadsheet:Month        PurchasesOctober      2000November  2500December   3780January      1200______ is the growth rate in Jan month

A company wants to forecast demand using the weighted moving average. If the company uses three prior yearly sales values (i.e., year 2015 = 230, year 2016 = 220, and year 2017 = 250), and we want to weight year 2015 at 30 percent, year 2016 at 30 percent, and year 2017 at 40 percent, which of the following is the weighted moving average forecast for year 2018?Group of answer choices

______________ is a quick estimate based on sales growth.Select one:a.percentage of salesb.moving averagec.monthly estimated.gross sales

The average revenues of 7 consecutive years of a company is Rs. 75 lakhs. If the average of first 4 years is Rs. 70 lakhs and that of last 4 years is Rs. 82 lakhs, what will be the revenue for the 4th year?