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[PDF File]STATISTICAL PRIMER
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statistical significance of a change in a rate over time, or of the difference between two rates in one period of time (for example between two geographic areas or
statistical significance between two numbers

[PDF File]Running a t-test in Excel - Roger Williams University
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Running a t-test in Excel Note: the Analysis TookPak is no longer included in Excel for the Mac. ... You will now see a window listing the various statistical tests that Excel can perform. Scroll down to find ... statistically significant difference between the means of your two trials. Note that in this example, p = 2.6 x 10-16, which is < 0 ...
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[PDF File]Statistical Testing for Dummies!!!
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Statistical Testing for Dummies!!! ... There are just five major statistical tests that you will want to be familiar with in your two years of Marine & Environmental Science at CBGS: 1. Standard ttest ... a “statistically significant” difference in their growth.
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[PDF File]Lecture 14: Large and small sample inference for proportions
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Difference of two proportions 1 Difference of two proportions 2 When to retreat 3 Small sample inference for difference between two proportions 4 Small sample inference for a proportion Statistics 101 (Mine C¸etinkaya-Rundel) L14: Large & small sample inference for props. March 13, 2012
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[PDF File]BELIEF IN THE LAW OF SMALL NUMBERS
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variety of statistical tests. In the normal test for a difference between two means, for ex-ample, a difference of .2 So- is small, a differ-ence of .SOo- is medium, and a difference of \a is large, according to the proposed defini-tions. The mean IQ difference between clerical and semiskilled workers is …
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[PDF File]Comparing Two Group Means or The Independent post, …
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Chapter 7 Comparing Two Group Means: The Independent Samples t Test 189 The Study As a little kid, I was afraid of the dark. Of course, this is not an uncommon fear for chil - …
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[PDF File]How To Run Statistical Tests in Excel
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How To Run Statistical Tests in Excel Microsoft Excel is your best tool for storing and manipulating data, calculating basic descriptive statistics such as means and standard deviations, and conducting simple mathematical operations on your numbers. It can also run the five basic Statistical Tests.
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[PDF File]2 Sample t-Test (unequal sample sizes and unequal variances)
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We see that both bounds are negative numbers indicating that they do not encompass zero, therefore the hypothesis that there is no difference between the two samples is not supported by the data; we reject the null hypothesis in favor of the alternative, at the a = 0.05 level.
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A Statistical Test for a Difference between the Spatial ...
A STATISTICAL TEST FOR A DIFFERENCE BETWEEN THE SPATIAL DISTRIBUTIONS OF TWO POPULATIONS' STEPHEN E. SYRJALA Alaska Fisheries Science Center, National Marine Fisheries Service, NOAA, 7600 Sand Point Way Northeast, Bin C15700, Seattle, Washington 98115-0070 USA Abstract. A statistical hypothesis test for a difference between the spatial ...
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[PDF File]SPSS Guide: Tests of Differences
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SPSS Guide: Tests of Differences ... of whether there is a statistical difference between the test value and the sample mean. Since the t- ... is less than .05 we can reject the null hypothesis and conclude that there is a difference between the two means. If you look at the descriptive statistics for the paired sample, you can see which mean is
are two numbers statistically different

Statistical difference between two numbers