Sas, between the Monthly sales and d) eriven the covariance advertising expenditures is equal to 7.072, find the equction of the least 'squares regression line for predicting sales from advertising expenditures.

Mathematics For Machine Technology
8th Edition
ISBN:9781337798310
Author:Peterson, John.
Publisher:Peterson, John.
Chapter87: An Introduction To G- And M-codes For Cnc Programming
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Problem 18A
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Question d and e. 

Sas, between the Monthly sales and
d) eriven the covariance ,
advertising expenaitures is equal to 7.072, find the equetion
of the least sauares reqression line for predicting sales from
advertising expenditures.
e) Use the least Squares regression eauation foun d in (d) to
estimate the monthly Sales given that the advertising
expenditures spent în that particuler Month is RM 5,900
Transcribed Image Text:Sas, between the Monthly sales and d) eriven the covariance , advertising expenaitures is equal to 7.072, find the equetion of the least sauares reqression line for predicting sales from advertising expenditures. e) Use the least Squares regression eauation foun d in (d) to estimate the monthly Sales given that the advertising expenditures spent în that particuler Month is RM 5,900
The following table lists the monthly sales and advertising expenditures for 10 months of a
digital electronics company in year 2017.
103 109 112 115 117 116 118 114 121
10
123
Sales (RM 000's)
4.4
5.9
6.5 6.8
7.
7.2
7.4
7.8
8.1
Advertising (RM 000's) a:
Transcribed Image Text:The following table lists the monthly sales and advertising expenditures for 10 months of a digital electronics company in year 2017. 103 109 112 115 117 116 118 114 121 10 123 Sales (RM 000's) 4.4 5.9 6.5 6.8 7. 7.2 7.4 7.8 8.1 Advertising (RM 000's) a:
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