DRQ #7 Capps 5 pts October 11, 2011 (2pts) 1. In the simple linear regression model, yi = b0.

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DRQ #7 Capps 5 pts October 11, 2011 (2pts) 1. In the simple linear regression model, yi = b0 + b1xi + ei, give the technical names of yi, xi, and ei. If b1=.6 interpret this coefficient. ( 1pt) 2. (a) Which of the following diagrams best describes the relationship of units sold (CE) of a firm and A which corresponds to advertising expenditures of the firm? (b) What is the technical name of the respective diagrams? 3. Concerning descriptive statistics of variable indigenous to regression analysis, (1/2 pt) The skewness coefficient for the variable PSE is -.35. The distribution of PSE has a tail on the ______________. a) c) b) d) . . CE A . A CE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A CE CE A

( ½ pt) 4. The acronym OLS stands for ____________. (1 pt) 5. Calculate the median of the following sample of observations for a variable labeled DTV: 18, 10, 14, 19, 17, 15, 12, 15, 21, 16, 11