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Unformatted text preview: 1. A test statistic for a twosided significance test for a population mean is z = 2.0. Sketch a standard normal curve and mark this value of z on it. Find the Pvalue and shade the appropriate areas under the curve to illustrate your calculations. 2. The Pvalue for a significance test is 0.067. a. Do you reject the null hypothesis at level = 0.05? b. Do you reject the null hypothesis at level = 0.01? 3. The Pvalue for a significance test is 0.045. a. Do you reject the null hypothesis at level = 0.05? b. Do you reject the null hypothesis at level = 0.01? 4. A test of the null hypothesis H o : = o gives test statistic z = 1.72. a. What is the Pvalue if the alternative is Ha : > o ? b. What is the Pvalue if the alternative is Ha : < o ? c. What is the Pvalue if the alternative is Ha : o ? 5. A test of the null hypothesis H o : = o gives test statistic z = 1.72....
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This note was uploaded on 08/29/2011 for the course ECON 2500 taught by Professor Xianghongli during the Winter '11 term at York University.
 Winter '11
 XiangHongLi

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