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hypothesis testing examples

# hypothesis testing examples - 1 A test statistic for a...

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Unformatted text preview: 1. A test statistic for a two-sided 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 P-value and shade the appropriate areas under the curve to illustrate your calculations. 2. The P-value for a significance test is 0.067. a. Do you reject the null hypothesis at level α = 0.05? b. Do you reject the null hypothesis at level α = 0.01? 3. The P-value for a significance test is 0.045. a. Do you reject the null hypothesis at level α = 0.05? b. Do you reject the null hypothesis at level α = 0.01? 4. A test of the null hypothesis H o : μ = μ o gives test statistic z = 1.72. a. What is the P-value if the alternative is Ha : μ > μ o ? b. What is the P-value if the alternative is Ha : μ < μ o ? c. What is the P-value if the alternative is Ha : μ ≠ μ o ? 5. A test of the null hypothesis H o : μ = μ o gives test statistic z = 1.72....
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hypothesis testing examples - 1 A test statistic for a...

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