The Head of production at Amiba private limited needed to examine the key determinants of company profitability($,000). So, he collected relevant(monthly) data and following is the summary of his regression output. SUMMARY OUTPUT Regression StatisticsMultiple R0.5776R Square0.3336Adjusted R Square0.2670Standard Error2.2743Observations34 ANOVA dfSSMSFSignificance FRegression377.677425.89255.00600.0062Residual30155.16935.1723 Total33232.8467 CoefficientsStandard Errort StatP-valueLower 95%Upper 95%Lower 95.0%Upper 95.0%Intercept10.492.92113.59270.00124.529116.46054.529116.4605Variable X0.991.24610.79370.4336-1.55593.5340-1.55593.5340Variable Y2.561.12912.26630.03080.25294.86480.25294.8648Variable Z2.061.27771.61070.1177-0.55154.6674-0.55154.66741.Based on your opinion, decide the names of the explanatory variables used in the study. (Note: variable selection should have a valid justification)

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Answered: The Head of production at Amiba private…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Head of production at Amiba private limited needed to examine the key determinants of company profitability($,000). So, he collected relevant(monthly) data and following is the summary of his regression output.

SUMMARY OUTPUT

Regression Statistics
Multiple R	0.5776
R Square	0.3336
Adjusted R Square	0.2670
Standard Error	2.2743
Observations	34

ANOVA
	df	SS	MS	F	Significance F
Regression	3	77.6774	25.8925	5.0060	0.0062
Residual	30	155.1693	5.1723
Total	33	232.8467

	Coefficients	Standard Error	t Stat	P-value	Lower 95%	Upper 95%	Lower 95.0%	Upper 95.0%
Intercept	10.49	2.9211	3.5927	0.0012	4.5291	16.4605	4.5291	16.4605
Variable X	0.99	1.2461	0.7937	0.4336	-1.5559	3.5340	-1.5559	3.5340
Variable Y	2.56	1.1291	2.2663	0.0308	0.2529	4.8648	0.2529	4.8648
Variable Z	2.06	1.2777	1.6107	0.1177	-0.5515	4.6674	-0.5515	4.6674

1.Based on your opinion, decide the names of the explanatory variables used in the study. (Note: variable selection should have a valid justification)

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