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Ch11B- SchoolBus

# Ch11B- SchoolBus - Milbank Gulf Park Milbank Gulf Park 35.9...

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Unformatted text preview: Milbank Gulf Park Milbank Gulf Park 35.9 21.6 Sample variance 48.0206 &amp;gt; 20 29.9 20.5 31.2 23.3 16.2 18.8 Null hypothesis: 19.0 17.2 15.9 7.7 The population variances of both bus companies are the same. 18.8 18.6 22.2 18.7 Alternative hypothesis: 19.9 20.4 The population variances of both bus companies are sinificantl 16.4 22.4 5.0 23.1 where: 25.4 19.8 population varicances fo 14.7 26.0 population varicances fo 22.7 17.1 18.0 27.9 sample size: 26.0000 28.1 20.8 12.1 degrees of freedom df1= 25.0000 df2= 21.4 13.4 CRITICAL VALUE: Fc= 2.2797 22.9 21.0 F TEST STATISTIC: 10.1 23.0 2.4010 &amp;gt; Fc= 2.28 19.4 15.2 28.2 p-value: 0.0811 Conclusion: ( Gulf Park I more reliable with regard to arrival times) F-Test Two-Sample for Variances Milbank Gulf Park Mean 20.23 20 Variance 48.02 20 Observations 26.00 16 Population 1 = Milbank n 1 = n 2 = &amp;lt; =0.10 At = 0.10 We reject the null hypotheis and conclude that the 2 2 2 1 : = H = 2 1 S = 2 2 S 2 2 2 1 : H = 2 1 = 2 2 = = 2 2 1 2 s s F df 25.00 15 F 2.40 &amp;gt; Fc= 2.28 P(F&amp;lt;=f) one-tail 0.04 F Critical one-tail 2.28 P value= 0.0811 Neu 2 tail test, anpha/2 Critical valua: 1.792 0.0811 &amp;lt; = 0.10 tly different. for Milkbank bus arrival times. for Gulf Park bus arrival times....
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Ch11B- SchoolBus - Milbank Gulf Park Milbank Gulf Park 35.9...

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