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With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded to the nearest peso) and degree of customer satisfaction (on a scale of 10 - 100 with a 10 being not at all satisfied and a 100 being extremely satisfied). The researcher only includes programs with comparable types of services. A sample of the data is provided below. Satisfaction Pesos 550 54 900 87 850 66 750 73 450 59 250 77 600 70 950 99 1100 95 1250 88 a. Compute for the correlation coefficient. Ans = Blank 1 b. Compute for the coefficient of determination. Ans = Blank 2 c. Determine the Regression Equation. y = Blank 3 + Blank 4 x

With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded to the nearest peso) and degree of customer satisfaction (on a scale of 10 - 100 with a 10 being not at all satisfied and a 100 being extremely satisfied). The researcher only includes programs with comparable types of services. A sample of the data is provided below. Satisfaction Pesos 550 54 900 87 850 66 750 73 450 59 250 77 600 70 950 99 1100 95 1250 88 a. Compute for the correlation coefficient. Ans = Blank 1 b. Compute for the coefficient of determination. Ans = Blank 2 c. Determine the Regression Equation. y = Blank 3 + Blank 4 x

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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With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded to the nearest peso) and degree of customer satisfaction (on a scale of 10 - 100 with a 10 being not at all satisfied and a 100 being extremely satisfied). The researcher only includes programs with comparable types of services. A sample of the data is provided below. Pesos Satisfaction ... 550 54 900 87 850 66 750 73 450 59 250 77 600 70 950 99 1100 95 1250 88 a. Compute for the correlation coefficient. Ans = Blank 1 b. Compute for the coefficient of determination. Ans = Blank 2 c. Determine the Regression Equation. y = Blank 3 + Blank 4 x d. Using your equation, estimate the satisfaction of the customer if the cost is P1175 per month. Ans = Blank 5 e. Using your equation, estimate the satisfaction of the customer if the cost is P245 per month. Ans = Blank 6 f. At 95% Confidence Level, construct a Confidence and Prediction Interval for your answer in (d). Blank 7< y < Blank 8 Blank 9 < y(n+1) < Blank 10
Transcribed Image Text:With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded to the nearest peso) and degree of customer satisfaction (on a scale of 10 - 100 with a 10 being not at all satisfied and a 100 being extremely satisfied). The researcher only includes programs with comparable types of services. A sample of the data is provided below. Pesos Satisfaction ... 550 54 900 87 850 66 750 73 450 59 250 77 600 70 950 99 1100 95 1250 88 a. Compute for the correlation coefficient. Ans = Blank 1 b. Compute for the coefficient of determination. Ans = Blank 2 c. Determine the Regression Equation. y = Blank 3 + Blank 4 x d. Using your equation, estimate the satisfaction of the customer if the cost is P1175 per month. Ans = Blank 5 e. Using your equation, estimate the satisfaction of the customer if the cost is P245 per month. Ans = Blank 6 f. At 95% Confidence Level, construct a Confidence and Prediction Interval for your answer in (d). Blank 7< y < Blank 8 Blank 9 < y(n+1) < Blank 10
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