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Assume the Competing Hypotheses Take the Following Form: H0: µ1-

Question 33

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Assume the competing hypotheses take the following form: H0: µ1- µ2 = 0,HA: µ1- µ2 ≠ 0,where µ1 is the population mean for population 1 and µ2 is the population mean for population 2.Also assume that the populations are normally distributed and that the observations in the two samples are independent.The population variances are not known but are assumed equal.Which of the following expressions is appropriate test statistic?


A) Assume the competing hypotheses take the following form: H<sub>0</sub>: µ<sub>1</sub>- µ<sub>2</sub> = 0,H<sub>A</sub>: µ<sub>1</sub>- µ<sub>2</sub> ≠ 0,where µ<sub>1</sub> is the population mean for population 1 and µ<sub>2</sub> is the population mean for population 2.Also assume that the populations are normally distributed and that the observations in the two samples are independent.The population variances are not known but are assumed equal.Which of the following expressions is appropriate test statistic? A) B) C) D)
B) Assume the competing hypotheses take the following form: H<sub>0</sub>: µ<sub>1</sub>- µ<sub>2</sub> = 0,H<sub>A</sub>: µ<sub>1</sub>- µ<sub>2</sub> ≠ 0,where µ<sub>1</sub> is the population mean for population 1 and µ<sub>2</sub> is the population mean for population 2.Also assume that the populations are normally distributed and that the observations in the two samples are independent.The population variances are not known but are assumed equal.Which of the following expressions is appropriate test statistic? A) B) C) D)
C) Assume the competing hypotheses take the following form: H<sub>0</sub>: µ<sub>1</sub>- µ<sub>2</sub> = 0,H<sub>A</sub>: µ<sub>1</sub>- µ<sub>2</sub> ≠ 0,where µ<sub>1</sub> is the population mean for population 1 and µ<sub>2</sub> is the population mean for population 2.Also assume that the populations are normally distributed and that the observations in the two samples are independent.The population variances are not known but are assumed equal.Which of the following expressions is appropriate test statistic? A) B) C) D)
D) Assume the competing hypotheses take the following form: H<sub>0</sub>: µ<sub>1</sub>- µ<sub>2</sub> = 0,H<sub>A</sub>: µ<sub>1</sub>- µ<sub>2</sub> ≠ 0,where µ<sub>1</sub> is the population mean for population 1 and µ<sub>2</sub> is the population mean for population 2.Also assume that the populations are normally distributed and that the observations in the two samples are independent.The population variances are not known but are assumed equal.Which of the following expressions is appropriate test statistic? A) B) C) D)

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