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Table 5 Quarter 2007 2008 2009 2010 Summer 57 60 65 64 Autumn 51 56 60 62 Winter 50 53 58 58 Spring 56 61 68 70 a. Find the quarterly seasonal indexes for farming equipment sold.

Table 5 Quarter 2007 2008 2009 2010 Summer 57 60 65 64 Autumn 51 56 60 62 Winter 50 53 58 58 Spring 56 61 68 70 a. Find the quarterly seasonal indexes for farming equipment sold.

Principles Of Marketing
Principles Of Marketing
17th Edition
ISBN:9780134492513
Author:Kotler, Philip, Armstrong, Gary (gary M.)
Publisher:Kotler, Philip, Armstrong, Gary (gary M.)
Chapter1: Marketing: Creating Customer Value And Engagement
Section: Chapter Questions
Problem 1.1DQ
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The marketing manager of a company that manufactures and distributes farming equipment (such as combined harvesters, ploughs and tractors) recorded the number of farming units sold quarterly for the period 2007 to 2010. Table 5 Quarter 2007 2008 2009 2010 Summer 57 60 65 64 Autumn 51 56 60 62 Winter 50 53 58 58 Spring 56 61 68 70 a. Find the quarterly seasonal indexes for farming equipment sold. b. Do seasonal forces significantly influence the sale of farming equipment? Comment. c. Derive a least squares trend line for the sales of farming equipment using a sequential numbering system starting with x = 1 in period 1. d. Prepare seasonally-adjusted trend estimates of the number of farming units that this company can expect to sell in each quarter of 2011.
Transcribed Image Text:The marketing manager of a company that manufactures and distributes farming equipment (such as combined harvesters, ploughs and tractors) recorded the number of farming units sold quarterly for the period 2007 to 2010. Table 5 Quarter 2007 2008 2009 2010 Summer 57 60 65 64 Autumn 51 56 60 62 Winter 50 53 58 58 Spring 56 61 68 70 a. Find the quarterly seasonal indexes for farming equipment sold. b. Do seasonal forces significantly influence the sale of farming equipment? Comment. c. Derive a least squares trend line for the sales of farming equipment using a sequential numbering system starting with x = 1 in period 1. d. Prepare seasonally-adjusted trend estimates of the number of farming units that this company can expect to sell in each quarter of 2011.
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