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[DOC File]A researcher was investigating variables that might be ...
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The dialog box above shows us that we approximately have power of .7085 to detect a statistically significant result in mean difference in exit time between the treatment and control conditions with an effect size of .66 at the alpha = .05 level. If you want to increase the power to …
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[DOC File]SIGN TEST (NONPARAMETRIC) - Ben
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The sample data provided were inserted into the GraphPad online tool, where each data set, denoting each treatment, was pasted into a separate column. The results of this comparison were statistically significant at the 0.05 level: P value and statistical significance: The one-tailed P value equals 0.0005. t …
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[DOC File]One Sample T-Test
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Its one-sided p-value is about .047, so it is statistically significant at the 5% level against the positive one-sided alternative. (ii) The range of fitted values is from about 42.41 to 92.67, which is much narrower than the rage of actual math pass rates in the sample, which is from zero to 100.
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[DOC File]Sampling and Sample Size - Columbia
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A) the variable Income is statistically significant at level 0.05 as a predictor of the variable Deaths. B) the variable Income is statistically significant at level 0.05 as a predictor of the variable Deaths in a multiple regression model that includes the variable Children.
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[DOC File]CHAPTER 17: SOCIAL STATISTICS
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7. How small should the p-value be in order to claim that a result is statistically significant? The p-value needs to be as small as or smaller than the alpha, α, level. The alpha level depends on our significance level. 8. What does statistically significant mean? This means that something, an event, is unlikely to happen by chance.
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[DOC File]Chapter 11- Testing A Claim
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An effect can be statistically significant but not clinically significant. And if an effect is not statistically significant its clinical significance cannot be assessed. That is, statistical significance is a necessary precondition for clinical significance but says nothing about the actual magnitude of the effect.
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What Is Alpha's Statistical Significance?
If the p-value is as small as or smaller than alpha, we say that the data are statistically significant at level. ***Significant in the statistical sense foes not mean “important.” It means simply not likely to happen just by chance. And the significance level makes not likely more exact.
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[DOC File]Example of statistical analysis
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c. There is a statistically significant relationship at the .05 levels. d. All of the above. e. Only b and c are correct. 16. The regression model can be used to. a. Summarize a relationship between variables. b. Predict a value of one variable from its relationship to another related variable. c. Analyze a relationship between two variables. d.
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[DOC File]AP Stats Chapter 11 Notes: Significance Tests
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The c computed from the sample is statistically significant at the 0.05 level. The population medians are probably not all equal. H0 not rejected: The c computed from the sample is statistically significant at the 0.05 level. The population medians could all be equal.
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Statistically significant at level a