Question 2 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 dollar) and degree of customer satisfaction (on a scale of 1 - 10 with a 1 being not at all satisfied and a 10 being extremely satisfied). The researcher only includes programs with comparable types of services. A sample of the data is provided below. dollars satisfaction 11 18 8 17 10 15 9 5 NOWOVA 12 19 22 25 10 a) Find the equation of the fitted regression line. b) Estimate the standard deviation of the error term & c) Calculate a 90% confidence interval for P, d) Test the null hypothesis that , = 0 (perform a two-sided test), using a = 0.1. Is the model useful? e) Perform the regression using R, and give the p-value to the test in part d). Verify that the p-value agrees with your conclusion in part d).f) Compute the correlation coefficient. Comment on its value and relate it to your conclusion in part d). g) Calculate R2. Comment on its value and relate it to your conclusion in part d). h) Calculate the ANOVA table for the data. Use the ANOVA Table to conduct an F-Test to see if the model is significant (use a = 0.05)