JUNE 2019

QUESTION 7 a) State FOUR (4) components of a time series. (4 marks) b) The following table shows the number of books sold (in units) by Fury bookstore from the month of August to October 2018. i) Find the trend values using the moving average method (correct to two decimal places). (5 marks) ii) Determine the seasonal index for each week. (6 marks) iii) Interpret the seasonal indices obtained for the second and fourth Itunnels (2 marks) iv) Forecast the number of books sold for the third week of November 2018