1 proportion z test example
[DOC File]One Proportion Z Test Worksheet
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One Proportion Z Test Worksheet. Any Boston Celtics fan or archrival knows that Shaquille O’Neal, one of the NBA’s most dominant centers of the last twenty years, always had difficulty shooting free throws. Over the course of his career, his overall made free-throw percentage is 53.3%. During this offseason, Shaq is working with an ...
[DOC File]Solving Proportions Worksheet
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1. Write the proportion. 8 = 192 . 3 n. 2. Write the cross products 8 ∙ n = 192 ∙ 3. 3. Multiply 8n = 576. 4. Undo multiplication by using 8n = 576. division 8 8. 5. Divide n = 72. Solve each proportion. Be sure to set it up the correct way and show all work. 1. 4 = 10 2. 5 = 6 3. 5 = 2
[DOC File]Example Opinion polls often provide information on how ...
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Minitab Commands: > stat > basic statistics > 1 Proportion. Minitab OUTPUT. Test and CI for One Proportion . Test of p = 0.7 vs p not = 0.7. Sample X N Sample p 95% CI Z-Value P-Value. 1 160 200 0.800000 (0.744564, 0.855436) 3.09 0.002. Hypothesis Test about the Difference Between Two Population Proportions
[DOC File]Z-Score Practice Worksheet
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Find the z-scores corresponding to each of the following values: A score that is 20 points above the mean. z=2. A score that is 10 points below the mean. z=-1. A score that is 15 points above the mean z=1.5. A score that is 30 points below the mean. z=-3. The Welcher Adult Intelligence Test Scale is composed of a number of subtests.
[DOC File]Chapter 1 Vocabulary - Introduction to Statistics
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Write a definition in your own words. Give an example when applicable. Section 1.1 – An Overview of Statistics. ... c-confidence interval for population proportion– ... Two sample z-test – ...
[DOC File]Hypothesis Testing:
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Test Statistics: . Need to check np0 ( 10 and n(1-p0) ( 10 to be able use the test statistic. Decision can be made in one of the two ways: a. Let z* be the computed test statistic value. Lower tailed test: P-value = Upper tailed test then reject H0 if P-value = Two-tailed test then reject H0 if P-value =
[DOCX File]University of Arizona
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H 0 :p= p 0 . and H a :p≠ p 0 or p> p 0 or p< p 0 , where p 0 . is a hypothesized value (a number between 0 and 1).For . Large sample size, use . z . test statistic, z= p - p 0 p 0 (1- p 0 ) n . and follow the 4 steps used for hypothesis testing.The . Large – Sample confidence interval
[DOCX File]University of Arizona
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(using 2 – proportion . z. test on calculator we get . P≈0.00000000065 . which is clear evidence we should reject the null hypothesis and concluded that the proportion of young men and young women that live with their parents is different)We now want to look at the confidence interval by finding the difference in the sample proportions:
[DOC File]Okun
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Z. test statistic is a value that falls between the critical values. This region is called the region of retention. For alpha = .05, we will reject H0, whenever our . Z. value is either equal to or less than -1.96 OR equal to or greater than +1.96. We will retain Ho whenever our . Z. value falls between -1.96 and +1.96.
[DOC File]1 - University of Minnesota Morris
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Large-Sample Significance test for a Population Proportion Draw an SRS of size n from a large population with unknown proportion p of successes. To test the hypothesis , compute the z-statistic. In terms of a standard normal random variable Z, the appropriate P-value for a test of against . is P() is P() is 2P() Example The French naturalist ...
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