x (x-R) (x-R)* (y-9) (x-R)(y-9) 1 2.125 4.516 30 B.125 66.016 17.266 3 0.016 40 -0.234 5 1.875 3.516 40 1.875 3.516 3.516 4 0.8/5 50 11.8/5 141.015 2 1.125 1.266 35 3.125 9.766 3.516 1.875 3.516 50 11.H/5 141.015 22.256 3 0.016 35 -3,125 9.766 0,391 2 -1.125 1.266 25 -13.125 172.265 14.756 surn 25 14.875 305 546.875 71.875

x (x-R) (x-R)* (y-9) (x-R)(y-9) 1 2.125 4.516 30 B.125 66.016 17.266 3 0.016 40 -0.234 5 1.875 3.516 40 1.875 3.516 3.516 4 0.8/5 50 11.8/5 141.015 2 1.125 1.266 35 3.125 9.766 3.516 1.875 3.516 50 11.H/5 141.015 22.256 3 0.016 35 -3,125 9.766 0,391 2 -1.125 1.266 25 -13.125 172.265 14.756 surn 25 14.875 305 546.875 71.875

Name: A small-business owner wants to assess the effects of advertising on s
Uploaded: 2024-03-20T07:07:26.000Z
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Description: A small-business owner wants to assess the effects of advertising on sales levels. The owner collected paired observation data. Each pair consisted of monthly advertising expenditure and monthly sales levels (in thousand dollars) which is reported in

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter7: Analytic Trigonometry

Section7.6: The Inverse Trigonometric Functions

Problem 92E

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Topic Video

Question

A small-business owner wants to assess the effects of advertising on sales levels. The owner collected paired observation data. Each pair consisted of monthly advertising expenditure and monthly sales levels (in thousand dollars) which is reported in the table below.

Advert (X) Sales (Y)

1 30

3 40

5 40

4. 50

2 35

5 50

3 35

2 25

Complete the attached table.

x (x-x)
(x-R)
y
(y-v)
(y-v)
(x-x)(v-v)
1
-2.125
4.516
30
-8.125
56.016
17.256
0.016
40
-0.234
1.875
3.516
40
1.875
3.516
3.516
4
0.875
50
11.8/5
141.015
2
1.125
1.266
35
3.125
9.766
3.516
1.8/5
3.516
50
11.875
141.015
22.256
3
0.016
35
-3.125
9.766
0.391
2
-1.125
1.266
25
-13.125
172.265
14.756
Sum
25
14.875
305
546.875
71.875

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