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The value of the sample correlation coefficient R, for these data is approximately 0.712. Answer the following, carrier, intermediate, computations to at least four decimal places, and rounder answers as specified below. a. What is the value of the slope of the least squares regression line f

The value of the sample correlation coefficient R, for these data is approximately 0.712. Answer the following, carrier, intermediate, computations to at least four decimal places, and rounder answers as specified below. a. What is the value of the slope of the least squares regression line f

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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The value of the sample correlation coefficient R, for these data is approximately 0.712. Answer the following, carrier, intermediate, computations to at least four decimal places, and rounder answers as specified below.
a. What is the value of the slope of the least squares regression line for these data? round your answer to at least two decimal places.

b. What is the value of the y-intercept of the least squares regression line for these data? Round your answer to at least two decimal places.

to demonstrate to its clients the effectiveness of the advertising campaigns it has conducted. The following bivariate data on twelve recent campaigns, including the cost of each campaign (denoted by x, in millions of dollars) and the resulting percentage increase in sales (denoted by y) following the campaign, were presented by the firm. A scatter plot of the data is shown in Figure 1. Campaign cost, x (in millions of dollars) 3.30 2.05 1.36 2.11 3.65 1.51 2.95 2.27 3.95 1.66 3.36 3.08 esc Explanation TOSHIBA í Check 2 W a Increase in sales, y (percent) 6.54 # 3 e 6.50 6.39 6.74 6.77 6.63 6.57 6.65 6.99 6.23 6.81 6.92 C A $ 4 r % 45 Increase in sales (percent) 6.6- Figure 1 t Campaign cost (in millions of dollars) 6 0 Oll Y & 7 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility u * CO 8 GMAE06723011 9 VA 100GB of Google Drive storage included "Ofter subject to change without notice- Bee Google Drive terras for more details 0 O p
Transcribed Image Text:to demonstrate to its clients the effectiveness of the advertising campaigns it has conducted. The following bivariate data on twelve recent campaigns, including the cost of each campaign (denoted by x, in millions of dollars) and the resulting percentage increase in sales (denoted by y) following the campaign, were presented by the firm. A scatter plot of the data is shown in Figure 1. Campaign cost, x (in millions of dollars) 3.30 2.05 1.36 2.11 3.65 1.51 2.95 2.27 3.95 1.66 3.36 3.08 esc Explanation TOSHIBA í Check 2 W a Increase in sales, y (percent) 6.54 # 3 e 6.50 6.39 6.74 6.77 6.63 6.57 6.65 6.99 6.23 6.81 6.92 C A $ 4 r % 45 Increase in sales (percent) 6.6- Figure 1 t Campaign cost (in millions of dollars) 6 0 Oll Y & 7 Ⓒ2022 McGraw Hill LLC. All Rights Reserved. Terms of Use | Privacy Center | Accessibility u * CO 8 GMAE06723011 9 VA 100GB of Google Drive storage included "Ofter subject to change without notice- Bee Google Drive terras for more details 0 O p
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