12 May Time and cost word processing in the first two columns of table below we repeat our data on time and cost for a sample of 5 word processing jobs. Cost($) Time (hr) y x 125 5 175 7 325 15 425 20 475 22.5 A)determine the regression equation for the data? b)Graph the regression equation and the data points? c) determine the y intercept and slope of that linear equation ? d) interpret the y intercept and slope in terms of the graph of the equation? e) interpret the y intercept and slope in terms of word processing cost? f)use the regression equation to predict the cost of 9 hours needed to complete the job? g) compute the linear correlation coefficient for the data? h)interpret the result in terms of the relationship between the variables time end cost of word processing job? i) discuss the graphical implications of the value or r?
cble below we repeat our data on time and cost for a sample of 5 word processing jobs. Cost($) Time (hr) y x 125 5 175 7 325 15 425 20 475 22.5 A)determine the regression equation for the data? b)Graph the regression equation and the data points? c) determine the y intercept and slope of that linear equation ? d) interpret the y intercept and slope in terms of the graph of the equation? e) interpret the y intercept and slope in terms of word processing cost? f)use the regression equation to predict the cost of 9 hours needed to complete the job? g) compute the linear correlation coefficient for the data? h)interpret the result in terms of the relationship between the variables time end cost of word processing job? i) discuss the graphical implications of the value or r?
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