4.3 The following data relate to the sales of a product over an eight-monthperiod:MonthSales (units)Price (E)Jan.5675Feb.7265Mar.7059Apr.6569May6869Jun.7549Jul.6659Aug.6759a. Investigate whether sales are affected more by the level of price or by thechange in price of the product.b. Interpret the regression coefficient of the explanatory variable.c. Draw an appropriate graph of the data and relationship.d. Forecast sales in September if price is £65.

Given data: Sales (units) 56 72 70 65 68 75 66 67 Price 75 65 59 69 69 49 59 59

Answered: 4.3 The following data relate to the…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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