Standardized test statistic z calculator

    • [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.

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    • [DOC File]1 .edu

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      72.What is the test statistic? z=2.542. t = 0.508. t = 2.542. z = 0.508. 73. What is the probability that the test statistic equals the observed value or a value even more extreme if the null hypothesis is true? b/t 0.01 and 0.005. b/t 0.01 and 0.02.0180 .9910 74.What is the 95% confidence interval for the population mean amount of radioactive ...

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    • [DOC File]JustAnswer

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      Oct 03, 2009 · Get the test statistic: z = (x-mu)/(sigma/sqrt(N)) z = (16.05-16)/(0.03/sqrt(50)) z = 11.785113 Using a p value calculator: The p value is so slightly above 0 that the calculator shows 0. Since the p value is so small, there is enough evidence to suggest that the cans are over filled.. 38.

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    • [DOC File]Example of Diagnostics for Residuals

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      Note that under the model assumptions, if we standardize the errors by subtraction off their mean (which is 0) and divide through by their standard deviation, then they have a standard normal (Z) distribution: Semistudentized Residuals. are quantities that approximate the standardized errors, based on …

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    • [DOC File]Rossman/Chance

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      (h) Calculate the z-score (test statistic) corresponding to the observed value of the sample proportion who leaned to the right. (Hint: Calculate a z-score by subtracting the mean and then dividing the difference by the standard deviation.) Then interpret this value.

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    • [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. ... Describe the distribution of the standardized test statistic . What is the formula for constructing a confidence interval for a slope?

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