Question

4 panaptoVideo Multiple egress X G Get Home o k Help with Cheg -Day 2 Intro Dusiness Statstes -Take Test Quiz 5 Regression 15 x -My Grades tro Business Stat x Х x oourse assessment_id-82303 1&course id-_77341 1&oontent_id-_175694018ustep-null Apps Kronos Workforce.. Mathwey 1 Algebrs.My Courses-Black QUESTION 9 Asurvay of used car dealers in the Wichita area was conducted by the Wichita Eagla to datormine the ralationship between the amount of classified advertising af used cars and usad car sales The tabla below shows the hundreds of lines of classified ads (200-2) and the number of usad cars sold in a month for each of the six dealars who used no other advertising medium. Hundred Lines of Advertising Number of Used Cars Sold 75 45 40 SUMMARY OUTPUT Mutipla R 0.94167503 Standard Error 7.37670196 sS 1704.33707 217.8629213 1922 MS Signifcance F 1704.337079 41573034 Total Slandard Error stat P-value Intercapt 19.3 8.528836537 2.266893 08601 698487 005003498 The dealers want a p edict he number of used cars sold based on the amount o classified advertising lf ฮ dealer wished to sell 80 cars, how many lines of classified advertising should dealership huy, based on your rograssion aquation? Express your answar in the numbar of lines that the dealar would nead to buy If you got 2, far your answer, type in 200 Remembar that x is expressed in whola numbers in the original data Click Save and Submit to save and submit. Click Save An Answers to save all answers. Save Al Answars Save and Submit 9:42 AM

Answer 1

Here Regression equation is

$\hat{y}=\beta _0+\beta _1*x$

19.3 + 10.7 * у

x = 80

y = 19.3 + 10.7 * 80

     = 875.3

    = 876

If 200 = 2 then 876 = 8.76 = 9

If a dealer wishes to sell 80 cars then 9 lines of classified advertising should dealership buy.