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onsider the ff. data set, in which a maker of asphalt shin rticular year and factors that influence sales. Y-sales(in 3- competing brands; X4- potential ble 3.5 Y X1 X2 X3 X4 291.9 9 56 5 10 160 4 42 8 4 230 4 70 15

onsider the ff. data set, in which a maker of asphalt shin rticular year and factors that influence sales. Y-sales(in 3- competing brands; X4- potential ble 3.5 Y X1 X2 X3 X4 291.9 9 56 5 10 160 4 42 8 4 230 4 70 15

MATLAB: An Introduction with Applications
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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For item 1 to 5, referring to Table 3.5. Consider the ff. data set, in which a maker of asphalt shingles is interested in the relationship between sales for a particular year and factors that influence sales. Y-sales(in thou $); X1- promotional accounts; X2- active accounts; X3- competing brands; X4- potential Table 3.5 Y X1 X2 X3 X4 291.9 9 56 5 10 160 4 42 8 4 339.4 6.5 73 5 16 159.6 5.5 60 7 86.3 5 44 12 237.5 6 50 6 107.2 5 39 10 4 Describe the relationship between sales and competing brands. no correlation moderate negative correlation moderate positive correlation high positive correlation Ohign negative relationship ܨ 6726 11 12
Transcribed Image Text:For item 1 to 5, referring to Table 3.5. Consider the ff. data set, in which a maker of asphalt shingles is interested in the relationship between sales for a particular year and factors that influence sales. Y-sales(in thou $); X1- promotional accounts; X2- active accounts; X3- competing brands; X4- potential Table 3.5 Y X1 X2 X3 X4 291.9 9 56 5 10 160 4 42 8 4 339.4 6.5 73 5 16 159.6 5.5 60 7 86.3 5 44 12 237.5 6 50 6 107.2 5 39 10 4 Describe the relationship between sales and competing brands. no correlation moderate negative correlation moderate positive correlation high positive correlation Ohign negative relationship ܨ 6726 11 12
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