A company collected data on its sales revenue and advertising expenditures for its first eight years in business with the results shown. (Units are in millions of dollars). Which one of the following statements is true? advertising () 1.4 1.6 1.6 2.0 2.0 2.2 2.4 2.6 sales (y) 180 184 190 220 186 215 205 240 E=1.975 j = 202.5 SS = 1.235 SSy 51.9 SS 3152 O The slope is positive and the correlation cocfficient is positive O The slope is positive and the correlation cocfficient is negative The slope is negative and the correlation coefficient is positive The slope is negative and the correlation cocfficient is negative
A company collected data on its sales revenue and advertising expenditures for its first eight years in business with the results shown. (Units are in millions of dollars). Which one of the following statements is true? advertising () 1.4 1.6 1.6 2.0 2.0 2.2 2.4 2.6 sales (y) 180 184 190 220 186 215 205 240 E=1.975 j = 202.5 SS = 1.235 SSy 51.9 SS 3152 O The slope is positive and the correlation cocfficient is positive O The slope is positive and the correlation cocfficient is negative The slope is negative and the correlation coefficient is positive The slope is negative and the correlation cocfficient is negative
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.1: Measures Of Center
Problem 9PPS
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Transcribed Image Text:A company collected data on its sales revenue and advertising expenditures for its first eight years in
business with the results shown. (Units are in millions of dollars). Which one of the following
statements is true?
advertising ()
sales (y
1.4
180
1.6
2.0
2.2
215
1.6
2.0
2.4
2.6
184
190
220
186
205
240
E=1.975 j = 202.5
SS
= 1.235 SS.y
51.9 SSyy
=3152
O The slope is positive and the correlation coefficient is positive
The slope is positive and the correlation cocfficient is negative
O The slope is negative and the correlation coofficient is positive
The slope is negative and the correlation cocfficient is negative
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