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[DOC File]Stats 156 – Calculator Stuff
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Two Sample z Test for Difference in 2 Population Proportions. In STAT – inside TESTS. 1. 2PropZTest. x1 = number of successes in sample 1. n1= sample 1 size. x2= number of successes in sample 2. n2= sample 2 size. χ2 Goodness of Fit Test. 1. Put observed counts in L1 and hypothesized π’s in L2. Go to PRGM. Choose CHI2. χ2 Test of ...
two proportion z test calculator

[DOC File]Thursday, February 3:
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We should use a two-sample z test for if the conditions are satisfied. Random: The data came from independent random samples. 10%: There were more than 10(1800) = 18,000 teenagers in 2005–2006 and 10(3000) = 30,000 teenagers in 1988–1994.
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[DOC File]Statistics Calculator - My Math Genius
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Alpha 0.01 Null 0.3 P-hat 0.39 Sample Size 225 Test Statistic: Z 2.945941518 Critical Value: 2 Tails -2.575829304 2.575829 Critical Value: 1 Tail Upper 2.326347874 Critical Value: 1 Tail Lower -2.326347874 p-value: 2 Tail 0.003219733 p-value: 1 Tail Upper 0.001609866 p-value: 1 …
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[DOC File]Z-Score Practice Worksheet
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Find the z-scores corresponding to each of the following values: A score of 60, where the mean score of the sample data values is 40. Z=2. A score that is 30 points below the mean. z=-3. A score of 80, where the mean score of the sample data values is 30. Z=5. A score of 20, where the mean score of the sample data values is 50. Z=-3
two proportions z test

[DOC File]The Practice of Statistics
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What are the calculator commands for the two-sample z test and interval for ? Comparing Two Means (pp.627-648) Summarize the three properties of a sampling distribution of a sample mean: Shape. Center. Spread. What are the shape, center, and spread of the sampling distribution of ? Give the formula for the mean and standard deviation.
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[DOC File]CHAPTER 5: SAMPLE PROBLEMS FOR HOMEWORK, CLASS OR …
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These problems are designed to be done without access to a computer, but they may require a calculator. 1. For each scenario below, choose the most likely method of analysis and write the corresponding letter in the blank. #1 two-sample t test #2 paired t test #3 two-sample z test …
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2 sample z test calculator