Critical values for correlation coefficient

    • [DOC File]Correlation

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      The Pearson r “correlation coefficient” is a summary statistic that indicates both the strength and direction of the relationship between two variables It has a value of between ‐1 and +1 – Values less than zero (e.g ‐0.8) indicate a negative correlation Values greater than zero (e.g. +0.8) indicate a positive correlation

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    • [DOC File]San Jose State University

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      Critical Values for Correlation Coefficient (Table II Appendix A from book) n Critical Value n Critical Value 1 0.997 21 0.413 2 0.950 22 0.404 3 0.878 23 0.396 4 0.811 24 0.388 5 0.754 25 0.381 6 0.707 26 0.374 7 0.666 27 0.367 8 0.632 28 0.361 9 0.602 29 0.355 10 0.576 30 0.349 11 0.555 40 0.304 12 0.532 50 0.273 13 0.514 60 0.250 14 0.497 70 ...

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    • [DOC File]Visualizing and Understanding Confidence Intervals Using ...

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      The correlation coefficient is –1. b. The correlation coefficient is 0. c. The correlation coefficient is 1. d. The coefficient of determination is between –2 and 2. 21 In a simple linear regression problem, the least squares line is = 2.73 - 1.02 , and the coefficient of determination is 0.7744. The correlation coefficient must be –0.88 ...

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    • [DOC File]Correlation - Radford

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      The correlation coefficient summarizes the relationship between two variables. We denote the correlation coefficient of the population by and the sample by r which is defined by:, or , where, , . ... Critical Values of the Correlation Coefficient . df=n-2 0.10 0.05 0.02 0.01 1 0.988 0.997 1.000 1.000 2 0.900 0.950 0.980 0.990 3 0.805 0.878 0 ...

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    • [DOC File]Section 10 - Breazeal

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      Each of the critical values corresponds to a different sample size n and, the larger that n is, the smaller the critical value. Thus, for a sample of size n = 5, the critical value is 0.878, so that the correlation coefficient for the data must be larger than this number in order to conclude that there is a statistically significant level of ...

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    • [DOC File]1 - UC Davis Department of Statistics

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      Correlation Basics + Calculator. Calculator (to find a, b, r, r2): Stat. Edit. Enter x’s in L1 and y’s in L2. 2nd Quit. Stat >Calc. 4:linreg. L1, L2. Use Zoom 9 to view a scatter diagram. Remember: y = all blank. statplots 1 (on) 2 & 3 (off)Output: r = linear correlation coefficient. r2 = coefficient of determination (AKA proportion of ...

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    • [DOC File]Chapter 1: Thinking Critically With Psychological Science

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      To test the difference between the two r values, use the following formula (Williams' test), where critical values can be found in a t-table. The resulting t-value has df. The two dependent correlation coefficients of interest are r12 and r13, and r23 is the correlation …

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    • Critical values for correlation coefficients

      If your correlation coefficient is a larger negative number than the critical region, your data indicate a significant negative correlation. The closer your r-value is to —1.0, the stronger the negative correlation.

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    • [DOCX File]kelly's math stuff - Home

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      A correlation coefficient is a statistical measure of relationship. A positive correlation indicates a direct relationship, meaning that two things increase together or decrease together. A negative correlation indicates an inverse relationship: As one thing increases, the other decreases.

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