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BUSI1013:STATISTICS FOR BUSINESS 3 ANOVA table Source SS DF MS FTreatments SST k-1 SST / (k-1) MST/MSEError SSE N-k SSE / (N-k)Total (corrected) SS N-1The word "source" stands for source of variation. Some authors prefer to use "between" and "within" instead of "treatments" and "error", respectively. What about X^2 test? Here are also, simple samples on F and X-tests to clearly show the steps and processes: The examples on ANOVA test are taken from Elementary Statistics book by M. Ghamsary, Ph.D. [public domain]. The information is for educational purposes only. Next, Examples on X^2 and F-tests.
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BUSI1013:STATISTICS FOR BUSINESS 6 ANalysis Of Variance Test, ANOVA for F-test
BUSI1013:STATISTICS FOR BUSINESS 7 F statistcs, 4.7 > Fcv, 3.68
Here is also a general overview of proportional test on this week’s topics of assignment: Two-sample z-test for difference of population proportions Why? To compare two unknown population proportions, p1and pWhen? The following conditions must be present for the test to be accurate and valid. Conditions 1 and 2 may have to be assumedto proceed with the test. 1.The samples are selected randomly. 2.The samples are selected independently. 3.Both samples are large enough so that the populations of proportions are normally distributed (At least 5 successes and 5 failures in each sample). How: Preliminary: • Select the level of significance, (use 0.05 unless otherwise stated). • Define p1andp2in the context of the problem. 1. State the null hypothesis: H0: p1= Choose an alternative hypothesis from one of the following: (i.) H1: p1> p2(ii.) BUSI1013:STATISTICS FOR BUSINESS 8 2. p2p1p2