Mathematics, 28.11.2019 02:31 purplefish53
He manufacturer of a light fixture believes that the dollars spent on advertising, the price of the fixture, and the number of retail stores selling the fixture in a particular month influence the light fixture sales. the manufacturer randomly selects 10 months and collects the following data:
sales advertising price # of stores
41 20 40 1
42 40 60 3
59 40 20 4
60 50 80 5
81 50 10 6
80 60 40 6
100 70 20 7
82 70 60 8
101 80 30 9
110 90 40 10
the sales are in thousands of units per month, the advertising is given in hundreds of dollars per month, and the price is the unit retail price for the particular month. using minitab, the following computer output is obtained.
the regression equation is
sales = 31.0 + 0.820 advertising - 0.325 price + 1.84 stores
predictor coef stdev t p
constant 30.992 7.728 4.01 .007
advertising .8202 .5023 1.63 .154
price -.32502 .08935 -3.64 .011
stores 1.841 3.855 .48 .650
s= 5.465 r-sq=96.7% r-sq(adj)=95.0%
analysis of variance
source df ss ms f p
regression 3 5179.2 1726.4 57.81 .000
residual error 6 179.2 29.9
total 9 5358.4
interpret the regression coefficients for the variables advertising, price, and store.
Answers: 2
Mathematics, 21.06.2019 15:20, alaina3792
Which equation represents a circle with a center at (–3, –5) and a radius of 6 units? (x – 3)2 + (y – 5)2 = 6 (x – 3)2 + (y – 5)2 = 36 (x + 3)2 + (y + 5)2 = 6 (x + 3)2 + (y + 5)2 = 36
Answers: 3
Mathematics, 21.06.2019 16:30, ladya1613
Hillel is juggling flaming torches to raise money for charity. his initial appearance raises $500\$500 $500 , and he raises $15\$15 $15 for each minute of juggling performance. the amount rr r of money hillel raises is a function of tt t , the length of his performance in minutes. write the function's formula.
Answers: 1
Mathematics, 21.06.2019 17:40, liyahlanderson2232
If square root x = -7, then x= -49 true or false
Answers: 1
Mathematics, 21.06.2019 22:30, 20alondra04
Explain how you could use the interactive table to tell if sets of points are on the same line. math 8
Answers: 2
He manufacturer of a light fixture believes that the dollars spent on advertising, the price of the...
Mathematics, 16.06.2020 23:57
Mathematics, 16.06.2020 23:57
Mathematics, 16.06.2020 23:57