P value and statistical significance
[DOCX File]Montgomery College
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The p value is then. Value as far from 0 as = 17 would happen 23% of the time when the true population mean is = 0. An outcome that would occur so often when is true is not good evidence against . Assignment: p. 698-699 11.7 to 11.12. Statistical Significance. We can compare the P-value with a fixed value that we regard as decisive.
[DOC File]John Uebersax Home Page
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The criterion against which the p-value is compared is called the significance level. Typically, the significance level is (arbitrarily) set at .05. Our Final Description of the process in terms of p-value and significance level . . . If the p-value is larger than the significance level, then …
[DOC File]AP Stats Chapter 11 Notes: Significance Tests
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p' s for all tests of statistical significance which you conduct using the normal curve, the binomial distribution, the Chi-square distribution, and the . t. and . F. distributions, even when you conduct them by hand (when you do the complete analysis on SPSS, you will get the . p-values automatically as a part of the statistical output).
P-Values and Statistical Significance | Simply Psychology
Section 4.3: Determining Statistical Significance To test hypotheses, we collect data and find the p-value. The . p-value. of the sample data in a statistical test is the probability, when the null hypothesis is true, of obtaining a sample as extreme as (or more extreme than) the observed sample.
[DOC File]Chapter 11- Testing A Claim
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The p-value and α are related, but are different concepts. As we shall see, we fix α in advance, but the value of p depends on the result of our study. The term . statistical significance. is used somewhat inconsistently to refer either to α or to the p-value. 2. The p-Value Approach to Hypothesis Testing
[DOCX File]Obtaining Exact Significance Levels With SAS
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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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