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You are conducting a test of independence for the claim thatthere is an association between the row variable and the columnvariable. X Y ZA46 6 52B39 10 28The expe...

Question

You are conducting a test of independence for the claim thatthere is an association between the row variable and the columnvariable. X Y ZA46 6 52B39 10 28The expected observations for this table would be X Y ZABThe resulting Pearson residuals are: X Y ZABWhat is the chi-square test-statistic for this data? χ2=

You are conducting a test of independence for the claim that there is an association between the row variable and the column variable. X Y Z A 46 6 52 B 39 10 28 The expected observations for this table would be X Y Z A B The resulting Pearson residuals are: X Y Z A B What is the chi-square test-statistic for this data? χ2=



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Consider a hypothesis test of difference of means for two independent populations $x_{1}$ and $x_{2}$ (a) What does the null hypothesis say about the relationship between the two population means? (b) If the sample test statistic has a $z$ distribution, give the formula for $z$ (c) If the sample test statistic has a $t$ distribution, give the formula for $t$.

Number four christian E. Given hypothesis test of difference of popular preparations for two independent populations X one and X two. Then our hypothesis states that the population preparations are equal. It snowed two. You want equal you too. The population preparations are equal if and only if there is no difference between the population preparations or in other words The difference between the population appropriations is zero. So it snowed to be one minus P. Two equals zero Mr. Number B. Given hypothesis test of difference of preparations for two independent populations. X one and X two. Formula for the sample test statics is then equal. People were one minus people to older square root. Be bold, Multiplied by 1- people. Multiply boy square root one over anyone plus one over into when people want the sample preparation of the first sample. So people want equal All run over in one people to The temple preparation of 2nd sample. So people powers to equally All two over into people as a full cooperation. So people equal all one plus or two over In one plus in two And one is a sample size of the first sample, and two is the simple side size of the second sample, and all one is the number of successes of the first symbol, and or to the number of success of the second sample.


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