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(b) How much of the variation in the sample values of weekly gross revenue does the model in part() explain? If required, round your answer to two decimal places (c) Use the data to develop an estimated regression equation with both television advertising and newspaper advertising as the independent variables Let i represent the amount of television advertising Let xy represent the amount of newspaper advertising If required, round your answers to three decimal places. For subtractive or negative numbers use a minus sign even if there is a sign before the blank. (Example: -300) 9 Test whether each of the regression parameters Bo, Bi and B is equal to zero at a 0.05 level of significance We can conclude that » We cannot v conclude that - We cannot conclude that B20 What are the correct interpretations of the estimated regression parameters? Are these interpretations reasonable? (1) Bols the estimate of the weekly gross revenue when television and newspaper advertising are both zero. , is the estimate of change in the weekly gross revenue it newspaper advertising is held constant and there is a $100 increase in television advertising. By is the estimate of change in the weekly gross revenue if television advertising is held constant and there is a $100 increase in newspaper advertising. The interpretation of Bo is not reasonable but the interpretations of B1 and B2 are reasonable (IV) Bo is the estimate of the weekly gross revenue when television and newspaper advertising are both zero Bi is the estimate of change in the weekly gross revenue ir television advertising is held constant and there is a $100 increase in newspaper advertising. B2 is the estimate of change in the weekly gross revenue If newspaper advertising is held constant and there is a $100 Increase in television advertising. The interpretation of Bo is not reasonable but the interpretations of B; and B2 are reasonable. (INT) Bo is the estimate of change in the weekly gross revenue if newspaper advertising is held constant and there is a $100 increase in television advertising. By is the estimate of change in the weekdy gross revenue ir television advertising is held constant and there is a $100 increase in
(d) How much of the variation in the sample values of weekly gross revenue does the model in part (c) explain? If required, round your answer to two decimal places (c) Given the results in part (a) and part (c), what should your next step be? Explain. The input in the box below will not be graded, but may be reviewed and considered by your instructor blank