Advertising 12. Advertising and sales figures are given for seven companies in t

Question

Advertising 12. Advertising and sales figures are given for seven companies in the given table. The numbers in the first column give the amount spent on advertising for a sales revenue. Spend Total Sales ithonands | (millions dollars) 153.2 206.2 225.6 07.A 68.5 74.8 atereven tor company in a year, and the second columes the total 122.9 151.1 144.4 01.7 35.6 114.5 S1.8 a. Using your calculator's STAT feature, give the equation of the regression line (LinReg) that best fits this data using Advertising as the independent variable and Total Sales as the dependent variable. Round the slope and y-intercept to three places after the decimal. Equation: 218 b. If a com pany were to spend $90,000 in advertising for a year, what wil the total sales be according to the regression equation? Round to the nearest million dollars. this slope means in the Give the slope of the regression line. Then write a sentence explaining what context of the question. c. Slope: Explanation Vrite a formula for each of the following functions Write the equation for the graph of function g (x) whose graph is similar to f (x)-l but has been shifted 2 units to the right and shifted up 3 units. Vrite the equation for the graph of function g (x) obtained by stretching the graph of f ()- ertically by factor 5

Explanation / Answer

(a)

Sales = 1.306*Advertising + 10.742

(b)

Sales = 1.306*Advertising + 10.742 = 1.306*90 + 10.742 = 128.309

(c)

Slope is 1.30

It means that for every additional thousand dollar spend, sales increases by 1.3 million dollar

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.