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Modell I Modell II
Variabel Koeff. t-värde Signifikant Koeff. t-värde Sign.
Konstant 43.7 7.87 Ja 36.5 6.38 Ja
Ln Försäljning - 3.3 -4.27 Ja -2.9 -3.83 Ja Ln Ålder -1.4 -1.98 Ja -0.8 -1.20 Nej Soliditet -20.5 -3.73 Ja -20.9 -4.01 Ja Avkastning på eget kapital 0.1 0.11 Nej 2.7 2.19 Ja
ÖVM Dummyvariabel -1.4 -0.66 Nej
Försäljningstillväxt 2.6 2.76 Ja
Justerat R2 värde : 0.35 Justerat R2 Värde : 0.39
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Modell III Modell IV
Variabel Koeff. t-värde Signifikant Koeff. t-värde Sign.
Konstant 39.5 7.56 Ja 39.3 7.37 Ja
Ln Försäljning -3.2 -4.46 Ja -3.2 -4.54 Ja Ln Ålder -1.2 -1.61 Nej -0.8 -0.68 Nej Soliditet -19.8 -3.87 Ja -20.9 -4.01 Ja
AC 2.1 2.38 Ja
AAC Konservativ -1.5 - 0.5 Nej
AAC Aggressiv 7.8 2.29 Ja
Justerat R2 värde : 0.38 Justerat R2 Värde : 0.40
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0.02
Modell V Modell VI
Variabel Koeff. t-värde Signifikant Koeff. t-värde Sign.
Konstant 19.5 2.04 Ja 20 2.05 Ja
Ln Försäljning -1.0 -0.94 Nej -1.1 -0.96 Nej Ln Ålder -1.2 -1.67 Nej -0.9 -0.66 Nej Soliditet -13.6 -2.01 Ja -15.5 -1.50 Nej Avkastning Eget Kapital 7.1 3.07 Ja 6.7 2.7 Ja ÖVM Dummy 3.3 2.28 Ja
AAC 0.6 0.46 Nej
Justerat R2 värde : 0.31 Justerat R2 Värde : 0.288
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Utdrag och exempel på minitabutskrifter gällande statistiska tester
Variabeln vinstdeltas inverkan på prissättningen
Descriptive Statistics
Vinstdelta/försäljning 80 bolag
Variable N Mean Median TrMean StDev SE Mean Låg_Delt 27 13,17 9,00 12,59 10,63 2,17 Mellan_D 26 9,92 7,00 9,36 8,28 1,69 Hög_Delt 27 12,13 7,50 11,59 11,00 2,24 Variable Minimum Maximum Q1 Q3
Låg_Delt 1,00 38,00 5,00 19,75 Mellan_D 0,00 32,00 4,00 14,00 Hög_Delt 1,00 35,00 4,00 16,75
Two Sample T-Test and Confidence Interval Vinstdelta.. test mellan hög och låg
Two sample T for Vinst_delta_hög vs Vinstdelta_låg
N Mean StDev SE Mean Vinst_de 27 12,4 10,9 2,2 Vinstdel 27 14,2 11,2 2,3
95% CI for mu Vinst_de - mu Vinstdel: ( -8,2; 4,6)
T-Test mu Vinst_de = mu Vinstdel (vs not =): T = -0,56 P = 0,58 DF = 51 Uppenbarligen kan vi inte förkasta hypotesen att de både kvartilerna har samma genomsnittspris.
Mann-Whitney Confidence Interval and Test
Låg förssäljning höga/låga accruals (tvättad data)
LFHA N = 17 Median = 18,18 LFLA N = 23 Median = 10,21 Point estimate for ETA1-ETA2 is 8,65 95,0 Percent CI for ETA1-ETA2 is (1,42;17,62) W = 338,0
Test of ETA1 = ETA2 vs ETA1 not = ETA2 is significant at 0,0109 Här kan utläsas att företag med låg försäljning kan öka priset genom EM
Mann-Whitney Confidence Interval and Test
HFHA N = 16 Median = 6,92 HFLA N = 24 Median = 5.06 Point estimate for ETA1-ETA2 is 1,30 95,0 Percent CI for ETA1-ETA2 is (-1,98;5,82) W = 284,0
Test of ETA1 = ETA2 vs ETA1 not = ETA2 is significant at 0,4266 Cannot reject at alpha = 0,05