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Author Question: Exhibit 12-4Regression analysis was applied between sales data (Y in $1,000s) and advertising data ... (Read 26 times)

blinding37

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on: Mar 25, 2023

Question 1

Exhibit 12-3
You are given the following information about y and x.

 

y
Dependent Variable

x
Independent Variable

12

4

  3

6

  7

2

  6

4


Refer to Exhibit 12-3. The coefficient of determination equals


◦

-0.4364


◦

0.4364


◦

-0.1905


◦

0.1905



Question 2

Exhibit 12-4
Regression analysis was applied between sales data (Y in $1,000s) and advertising data (x in $100s) and the following information was obtained.

= 12 + 1.8 x

n = 17
SSR = 225
SSE = 75
Sb1 = 0.2683


Refer to Exhibit 12-4. Based on the above estimated regression equation, if advertising is $3,000, then the point estimate for sales (in dollars) is


◦

$66,000


◦

$5,412


◦

$66


◦

$17,400

Essentials of Statistics for Business and Economics ¦ Anderson, Sweeney, Williams, Camm, Cochran ¦ 7th Edition
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Marked as best answer by blinding37 on Mar 25, 2023

saly

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Reply #1 on: Mar 25, 2023
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blinding37

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Reply 2 on: Mar 25, 2023
Wow, this really help

upturnedfurball

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Reply 3 on: Yesterday
Excellent

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