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Assume the Competing Hypotheses Take the Following Form H0: µ1

Question 21

Multiple Choice

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, the variances are known, and independent sampling is used. Which of the following expressions is the appropriate test statistic?


A) tdf = 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, the variances are known, and independent sampling is used. Which of the following expressions is the appropriate test statistic? A) t<sub>df</sub> = B) t<sub>df</sub> = C) z = D) t<sub>df</sub> =
B) tdf = 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, the variances are known, and independent sampling is used. Which of the following expressions is the appropriate test statistic? A) t<sub>df</sub> = B) t<sub>df</sub> = C) z = D) t<sub>df</sub> =
C) z = 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, the variances are known, and independent sampling is used. Which of the following expressions is the appropriate test statistic? A) t<sub>df</sub> = B) t<sub>df</sub> = C) z = D) t<sub>df</sub> =
D) tdf = 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, the variances are known, and independent sampling is used. Which of the following expressions is the appropriate test statistic? A) t<sub>df</sub> = B) t<sub>df</sub> = C) z = D) t<sub>df</sub> =

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