State your conclusion. O Do not reject Ho. There is sufficient evidence to conclude that , is significant. O Reject Ho. There is insufficient evidence to conclude that , is significant. O Reject Ho. There is sufficient evidence to conclude that , is significant. O Do not reject Ho. There is insufficient evidence to conclude that , is significant. (d) At a = 0.05, test for the significance of the coefficient of number of salespeople. State the null and alternative hypotheses. (Enter != for as needed.) Ho H₂: Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject Ho. There is sufficient evidence to conclude that B₂ is significant. O Do not reject Ho. There is insufficient evidence to conclude that ß₂ is significant. O Reject Ho. There is insufficient evidence to conclude that ß₂ is significant. O Do not reject Ho. There is sufficient evidence to conclude that ₂ is significant. (e) If the company uses $48,000 in advertisement and has 790 salespeople, what are the expected sales? Give your $

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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State your conclusion.
1
O Do not reject Ho. There is sufficient evidence to conclude that is significant.
O Reject Ho. There is insufficient evidence to conclude that B₁ is significant.
O Reject Ho
There is sufficient evidence to conclude that is significant.
O Do not reject Ho. There is insufficient evidence to conclude that , is significant.
(d) At a = 0.05, test for the significance of the coefficient of number of salespeople.
State the null and alternative hypotheses. (Enter != for # as needed.)
Ho:
H₂:
f. 2
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value
=
State your conclusion.
O Reject Ho. There is sufficient evidence to conclude that is significant.
O Do not reject Ho. There is insufficient evidence to conclude that B₂ is significant.
O Reject Ho. There is insufficient evidence to conclude that B₂ is significant.
O Do not reject Ho. There is sufficient evidence to conclude that B₂ is significant.
(e) If the company uses $48,000 in advertisement and has 790 salespeople, what are the expected sales? Give your answer in dollars.
Need Help? Read It
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f4
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11/29/2
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Transcribed Image Text:esc State your conclusion. 1 O Do not reject Ho. There is sufficient evidence to conclude that is significant. O Reject Ho. There is insufficient evidence to conclude that B₁ is significant. O Reject Ho There is sufficient evidence to conclude that is significant. O Do not reject Ho. There is insufficient evidence to conclude that , is significant. (d) At a = 0.05, test for the significance of the coefficient of number of salespeople. State the null and alternative hypotheses. (Enter != for # as needed.) Ho: H₂: f. 2 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Reject Ho. There is sufficient evidence to conclude that is significant. O Do not reject Ho. There is insufficient evidence to conclude that B₂ is significant. O Reject Ho. There is insufficient evidence to conclude that B₂ is significant. O Do not reject Ho. There is sufficient evidence to conclude that B₂ is significant. (e) If the company uses $48,000 in advertisement and has 790 salespeople, what are the expected sales? Give your answer in dollars. Need Help? Read It f2 f3 f4 FREER f5 702 4- ♫+ fg KAA fg DII f10 f11 f12 insert prt sc 2 delete home 3 O end 1:34 11/29/2 pc
esc
You may need to use the appropriate technology to answer this question.
The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x, in thousands of dollars), and number of salespeople (x₂) for a corporation. The regression
was performed on a sample of 10 observations.
f1
Constant
?
Ho
X1
H
x2
(a) Write the regression equation.
ŷ =
Coefficients
-11.320
0.788
0.151
12
(b) Interpret the coefficients of the estimated regression equation found in part (a). (Give your answers in dollars.)
As advertising increases by 1 unit ($1,000), sales are expected to increase by $
increase by $
when advertising is held constant.
Standard Error
(c) At a = 0.05, test for the significance of the coefficient of advertising.
State the null and alternative hypotheses. (Enter != for # as needed.)
20.452
0.302
0.218
Find the value of the test statistic. (Round your answer to two decimal places.)
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
O Do not reject Ho. There is sufficient evidence to conclude that , is significant.
L
f5
f6
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f8
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when the number of salespeople is held constant. As the number of salespeople increases by 1, sales are expected to
DII
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f10
DDI
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1:34 PM
11/29/2022
pg up
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Transcribed Image Text:esc You may need to use the appropriate technology to answer this question. The following is part of the results of a regression analysis involving sales (y in millions of dollars), advertising expenditures (x, in thousands of dollars), and number of salespeople (x₂) for a corporation. The regression was performed on a sample of 10 observations. f1 Constant ? Ho X1 H x2 (a) Write the regression equation. ŷ = Coefficients -11.320 0.788 0.151 12 (b) Interpret the coefficients of the estimated regression equation found in part (a). (Give your answers in dollars.) As advertising increases by 1 unit ($1,000), sales are expected to increase by $ increase by $ when advertising is held constant. Standard Error (c) At a = 0.05, test for the significance of the coefficient of advertising. State the null and alternative hypotheses. (Enter != for # as needed.) 20.452 0.302 0.218 Find the value of the test statistic. (Round your answer to two decimal places.) Find the p-value. (Round your answer to four decimal places.) p-value = State your conclusion. O Do not reject Ho. There is sufficient evidence to conclude that , is significant. L f5 f6 4- f7 ♫+ f8 IAA fg when the number of salespeople is held constant. As the number of salespeople increases by 1, sales are expected to DII hp f10 DDI f12 insert prt sc { delete home end 1:34 PM 11/29/2022 pg up 4 pg dn
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