xY11 Electoral College T ×k Cengage- xYa Aplia: Student Que XVNe ia.com/at/servl

Question

xY11 Electoral College T ×k Cengage- xYa Aplia: Student Que XVNe ia.com/at/servlet/quiz?quiz_action-takeQuiz&quiz;_probGuid-QNAPCOA8010100000041c42980070000&ctx-ebal; x(·Cengage The following data summarize the results from an independent-measures study comparing three treatment conditions Treatment 8N-12 G 48 536x2#238 Calculate the sample variance for each of the three samples. variance for sample Variance for sample I variance for sample m use an ANOVA with a 05 to determine whether there means are any significant differences among the three treatment merator Degrees of Freedom-6

Explanation / Answer

variance for sample 1 =SS/(n-1)=0.667

variance for sample 2 =SS/(n-1)=1.333

variance for sample 3 =SS/(n-1)=2.667

reject the null hypothesis, there are significant differences,,,,,

population ni x?i S2i ni*(Xi-Xgrand)2 (ni-1)*S2i sample I 4 4.000 0.667 0.000 2.00 sample II 4 2.000 1.333 16.000 4.00 sample III 4 6.000 2.667 16.000 8.00 grand mean= 4.000 32.000 14.00 SSTr SSE Source of variation SS df MS F F crit between 32.000 2 16.00 10.29 4.26 within 14.000 9 1.56 total 46.000 11

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