Question 7 The summary summation values given below are a random sample of 25 weeks marketing spend and the sales values. A retailer wants to examine the relationship between the marketing spend and the sales values. Ex = 437, Ey = 462, Σ- 20611 , Σν,-20826 , Σν- 20096, n-25 Note: y refers to sales values and x represents marketing spend Calculate the correlation coefficient for the data and comment on the answer, Calculate the values of y-intercept and slope coefficients, in the straight line regression equation. Express the relationship in a linear regression equation. Use the linear regression equation to estimate the sales values if marketing spending R25 (000).

Question 7 The summary summation values given below are a random sample of 25 weeks marketing spend and the sales values. A retailer wants to examine the relationship between the marketing spend and the sales values. Ex = 437, Ey = 462, Σ- 20611 , Σν,-20826 , Σν- 20096, n-25 Note: y refers to sales values and x represents marketing spend Calculate the correlation coefficient for the data and comment on the answer, Calculate the values of y-intercept and slope coefficients, in the straight line regression equation. Express the relationship in a linear regression equation. Use the linear regression equation to estimate the sales values if marketing spending R25 (000).

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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