Several studies have found that the frequency with which

Last updated: 8/3/2023

Several studies have found that the frequency with which shoppers browse Internet retailers is related to the frequency with which they actually purchase products and or services online The data the accompanying table show the age of respondents and their answer to the question how many minutes do you browse online retailers per week Complete parts a through d Click the icon to view the data table OA 600 300 15 40 Age 65 OB Wien cons 600 5 The equal spread condition because the Normal probability plot 300 0 15 40 Age 65 Q O C Br Ti min wk 600 3004 0 15 40 Age b Do you think a linear model is appropriate Explain OA The scatterplot appears to have slight curvature at one end of the age distribution so a linear regression may not be complete OB The scatterplot shows a curved line so a linear regression is not appropriate unless the variables are transformed to make the C The scatterplot shows points in a tightly clustered single stream that form a straight line so a linear regression is definitely ap D The scatterplot does not show any discernable trend or pattern so a linear regression is definitely not appropriate c Find the equation of the regression line 65 Browsing Time Age Round the constant to one decimal place as needed Round the Age coefficient to three decimal places as needed d Check the residuals to see if the conditions for inference are met satisfied because the scatterplot of the residuals against the predicted values shows an approximately straight line This is also the case because a histogram of the residuals extreme outliers satisfied because the Normal probability plot Data Table Age 22 50 44 33 55 61 38 22 21 45 52 33 18 17 21 Browsing Time min wk 493 186 180 384 121 120 276 480 510 252 126 359 570 588 498 Print Done 0 unimodal and symmetric The