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ADVERTISING VS SALES (Exercise 2) A study was made by a retail merchant to determine the relation between weekly advertising expenditures and sales. A. Plot a scatter diagram. B. Find the equation of the regression line to predict weekly sales from advertising expenditures. C. Compute the coefficient of correlation. Interpret. D. Compute the coefficient of determination. Interpret. E. Estimate the weekly sales when advertising costs are $35. ADVERTISING COSTS ($) 40 20 25 20 30 50 40 20 50 45 SALES ($) 385 400 395 365 475 440 490 420 560 525

ADVERTISING VS SALES (Exercise 2) A study was made by a retail merchant to determine the relation between weekly advertising expenditures and sales. A. Plot a scatter diagram. B. Find the equation of the regression line to predict weekly sales from advertising expenditures. C. Compute the coefficient of correlation. Interpret. D. Compute the coefficient of determination. Interpret. E. Estimate the weekly sales when advertising costs are $35. ADVERTISING COSTS ($) 40 20 25 20 30 50 40 20 50 45 SALES ($) 385 400 395 365 475 440 490 420 560 525

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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ADVERTISING VS SALES (Exercise 2) A study was made by a retail merchant to determine the relation between weekly advertising expenditures and sales. A. Plot a scatter diagram. B. Find the equation of the regression line to predict weekly sales from advertising expenditures. C. Compute the coefficient of correlation. Interpret. D. Compute the coefficient of determination. Interpret. E. Estimate the weekly sales when advertising costs are $35. ADVERTISING COSTS ($) SALES ($) 385 400 395 365 475 440 490 420 560 525 40 20 25 20 30 50 40 20 50 45
Transcribed Image Text:ADVERTISING VS SALES (Exercise 2) A study was made by a retail merchant to determine the relation between weekly advertising expenditures and sales. A. Plot a scatter diagram. B. Find the equation of the regression line to predict weekly sales from advertising expenditures. C. Compute the coefficient of correlation. Interpret. D. Compute the coefficient of determination. Interpret. E. Estimate the weekly sales when advertising costs are $35. ADVERTISING COSTS ($) SALES ($) 385 400 395 365 475 440 490 420 560 525 40 20 25 20 30 50 40 20 50 45
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