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The owner of Showtime Movie Theaters, Inc., would like topredict weekly gross revenue as a function of advertisingexpenditures. Historical data for a sample of eight weeksfollow.

Weekly Gross Revenue ($1,000s)	Television Advertising ($1,000s)	Newspaper Advertising ($1,000s)
96	5.0	1.5
90	2.0	2.0
95	4.0	1.5
92	2.5	2.5
95	3.0	3.3
94	3.5	2.3
94	2.5	4.2
94	3.0	2.5

(a)

Develop an estimated regression equation with the amount oftelevision advertising as the independent variable. (Round yournumerical values to two decimal places. Let x₁represent the amount of television advertising in $1,000s andy represent the weekly gross revenue in $1,000s.)

Å· =

(b)

Develop an estimated regression equation with both televisionadvertising and newspaper advertising as the independent variables.(Round your numerical values to two decimal places. Letx₁ represent the amount of televisionadvertising in $1,000s, x₂ represent the amountof newspaper advertising in $1,000s, and y represent theweekly gross revenue in $1,000s.)

Å· =

(c)

Is the estimated regression equation coefficient for televisionadvertising expenditures the same in part (a) and in part (b)?

---Select--- Yes No , it is  in part (a)and  in part (b).

Interpret the coefficient in each case.

In part (a) it represents the change in revenue due to aone-unit increase in television advertising expenditure. In part(b) it represents the change in revenue due to a one-unit increasein television advertising with newspaper advertising heldconstant.In part (a) it represents the change in revenue due to aone-unit increase in television advertising expenditure withnewspaper advertising held constant. In part (b) it represents thechange in revenue due to a one-unit increase in newspaperadvertising with television advertising heldconstant.    In part (a) it represents thechange in revenue due to a one-unit increase in newspaperadvertising expenditure with television advertising held constant.In part (b) it represents the change in revenue due to a one-unitincrease in television advertising with newspaper advertising heldconstant.In part (a) it represents the change in revenue due to aone-unit increase in television advertising expenditure. In part(b) it represents the change in revenue due to a one-unit increasein newspaper advertising with television advertising heldconstant.In part (a) it represents the change in revenue due to aone-unit increase in television advertising with newspaperadvertising held constant. In part (b) it represents the change inrevenue due to a one-unit increase in television advertisingexpenditure.

(d)

Predict weekly gross revenue (in dollars) for a week when $3,500is spent on television advertising and $1,800 is spent on newspaperadvertising. (Round your answer to the nearest cent.)

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