06 - 2_Sample_Tests

06 - 2_Sample_Tests - 2-Sam ple Independent M ean/D...

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Unformatted text preview: 2-Sam ple Independent M ean/D ispersion TestsDataSample1Sample2Name1 Name2D escriptives95% C onfidence Intervals11547136Sample 1Sample 2LPEUL21291547Sample Size2727nMean 13 8.97 1381.30 1423.63315081530Mean 1381.30 1374.96x-barMean 2 13 7.14 1374.96 1412.7841323150Variance# #9140.42Variance 1 7101.12# ## #51294141Std Dev. 107.095.61Variance 2 56 8.73 9140.42# #61561290Mean Dif erence 6.3 3Std Dev 184.27107.0146.64713181313Significance5%Std Dev 275.2995.61131.02813491390Dif Means (Eq Var) -49.086.361.7591254146Dif Means (Uneq Var) -49.16.361.71014651528114741369Test Statistic1.2527F1212711239df1261313251293df22614123813161513401518Nul HypothesDecision1613 314350.45 72.19430.569817123912640.5183NA0.71511813141293NA1.92920.2849191436135920134212802115241352214901426A s um ing Population Variances are Equal231401302Po led Variance# #241531271Test Statistic0.2 93t2515351326df522612901267271281473Nul Hypothesist-criticalDecision2.0 60.81951.67470.5902-1.67470.4098A s um ing Population Variances are U nequalTest Statistic0.2 93tdf 51.3539Nul Hypothesist-criticalDecision2.0 760.81951.67530.5902-1.67530.4098x1x2s2s21ss2s1s2x1 - x2x1 - x2F-T est fo r Equality o f Varian ces12FLFULp-valueH0: 21 - 2 = 0H0: 21 - 2 0H0: 21 - 2 0t-Test for D if eren ce in Po pulatio n M eanss2pp-valueH0: 1 -2 = H0: 1 -2 H0: 1 -2 p-valueH0: 1 -2 = H0: 1 -2 H0: 1 -2 2-Sample Independent Mean/Dispersion TestsDescriptives95% Confidence IntervalsSample 1Sample 2LLPEULSample Size2727nMean 1 1338.971381.301423.63Mean 1381.301374.96x-barMean 2 1337.141374.961412.78Variance###9140.42Variance 1 7101.12######Std Dev.107.0095.61Variance 2 5668.739140.42###Mean Difference6.3333Std Dev 184.27107.00146.64Significance5%Std Dev 275.2995.61131.02Diff Means (Eq Var)-49.086.3361.75Diff Means (Uneq Var)-49.116.3361.77Test Statistic1.2527Fdf126df226Null HypothesDecision0.45572.19430.56980.5183NA0.7151NA1.92920.2849Assuming Population Variances are EqualPooled Variance###Test Statistic0.2293tdf52Null Hypothesist-criticalDecision2.00660.81951.67470.5902-1.67470.40980....
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This note was uploaded on 12/13/2010 for the course LEEDS BCOR 1020 taught by Professor Heatheradams during the Spring '08 term at Colorado.

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06 - 2_Sample_Tests - 2-Sam ple Independent M ean/D...

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