5. In a study of the performance of a computer printer, the size (in kilobytes) and the printing time (in seconds) for each of 22 small text files were recorded. A regression line was a satisfactory description of the relationship between size and printing time. The results of the regression analysis are shown below. Coefficients 11.6559 3.47812 Intercept Size Standard Error 0.3153 0.294 0.875 0.869 0.6174 t-stat 37 11.8 Regression Statistics R Square Adjusted R Square Standard error Observations 22 a. Write down the regression equation. 2 points b. Interpret the slope of the regression equation (b). 2 points P-value