P value statistics for dummies
[DOC File]Structural Equation Modeling - Department of Statistics
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Goodness of Fit Index (GFI) and Adjusted Goodness of Fit Index (AGFI) are larger than 0.9 which again reflect a good fit although GFI and AGFI may not be as informative as Chi-square test statistics and RMSEA. Result (Default model) Minimum was achieved. Chi-square = 7.81724. Degrees of freedom = 4. Probability level (p-value) = .09851. RMSEA
[DOC File]CHAPTER 13
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The R-squared is about .0153 and F 2.90; with 6 and 1,122 df, the p-value is about .0082. So there is evidence of heteroskedasticity that is a function of time at the 1% significance level. This suggests that, at a minimum, we should compute heteroskedasticity-robust standard errors, t statistics, and F statistics.
[DOC File]CHAPTER 7
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The F statistic for joint significance of the four family size dummies is about 5.44. With 4 and 9,265 df, this gives p-value = .0002. So the family size dummies are jointly significant. (vii) The SSR for the restricted model is from part (vi): SSRr = 30,215,207.5.
[DOCX File]Faculty Directory | UVA Darden School of Business
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Basic summary statistics for the numerically-scaled variables are also provided. (Based on EMBS question 45, page 603). ... The model p-value is 0.00024. Thus we reject H0: mean score is equal for the three quality groups in favor of Ha: they are not all equal. ... If we know both to be “very good” quality, we include two quality dummies in ...
[DOC File]SPSS Cheat Sheet - IUPUI
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The resulting dialog box will ask for the variable(s) being assessed and, in the case of the one-sample t-test, a value of interest (the “test value”). Note that the output generated will include a “Sig” value – this is the two-sided p-value. If you want to perform a one-sided test, you need to divide this value by 2.
[DOC File]Z-Score Practice Worksheet
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Three students take equivalent stress tests. Which is the highest relative score (meaning which has the largest z score value)? C has the highest z - score. A score of 144 on a test with a mean of 128 and a standard deviation of 34..47. A score of 90 on a test with a mean of 86 and a standard deviation of 18. .22
[DOC File]Power Spectral Density - the basics
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This is telling us that the average value of the MATLAB PSD, which is the variance, is close to unity. Now let’s consider filtering the Gaussian noise. First design a high order Butterworth filter that cuts off at half the Nyquist frequency (500 Hz) »[b,a]=butter(40,0.5); %n=40th order,fc=0.5 nyquist
[DOCX File]Faculty Directory | UVA Darden School of Business
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A regression of giving rate on graduation rate shows a positive linear relationship with reported p-value of 5.24E-10. For Ha: b>0, the p-value is half that, or 2.62E-10. We reject H0 in favor of Ha. The results are statistically significant.
[DOC File]One Sample T-Test
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& 2) Divide the p-value in the SPSS output in half and apply it to the alpha level assigned in the homework problem. One Sample T-Test. The One-Sample T Test procedure tests whether the mean of a single variable differs from a specified constant. Examples.
[DOC File]Answers
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Random Effect Standard Variance df Chi-square P-value. Deviation Component-----INTRCPT1, U0 0.20079 0.04032 11 82.35891 0.000. MENTOR slope, U1 0.21964 0.04824 12 20.98481 0.050. level-1, R 0.62776 0.39408-----Statistics for current covariance components model
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