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The following table shows the monthly adverting expenditure and sales revenue of a company. You are required to estimate the covariance and correlation coefficient and explain what do these statistics tell you about the relationship between two variables and advice the company. Sales revenue ($M) 9.6 11.3 12.5 9.5 8.5 12 11.4 12.5 13.8 14.6 Advertising expenditure ($000) 23 40 55 54 28 25 31 36 88 90

The following table shows the monthly adverting expenditure and sales revenue of a company. You are required to estimate the covariance and correlation coefficient and explain what do these statistics tell you about the relationship between two variables and advice the company. Sales revenue ($M) 9.6 11.3 12.5 9.5 8.5 12 11.4 12.5 13.8 14.6 Advertising expenditure ($000) 23 40 55 54 28 25 31 36 88 90

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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  1. The following table shows the monthly adverting expenditure and sales revenue of a company. You are required to estimate the covariance and correlation coefficient and explain what do these statistics tell you about the relationship between two variables and advice the company.

    Sales revenue ($M)

    9.6

    11.3

    12.5

    9.5

    8.5

    12

    11.4

    12.5

    13.8

    14.6

    Advertising expenditure ($000)

    23

    40

    55

    54

    28

    25

    31

    36

    88

    90

    (Note: Excel calculations are not allowed, and required to show all the steps in calculations)

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