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Statistics Chapter 10
Statistics Chapter 10

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Here

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here - Mathematical and Computer Sciences - Heriot

ppt
ppt

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PPT - StatsTools

... • Higher level increases power (e.g., from .05 to .10) ...
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WED_UnivStats - KEATS

... Using a computer, or published tables, we obtain p=0.0329 (two-sided) i.e. if the H0 were true there would only be a 3.3 % chance that we would see such a large, or larger, mean change in our sample. ...
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ANOVA notes

... • Prob>F is p value; observed significance probability of obtaining a greater F-value by chance alone. 0.05 or less considered evidence of a •Also get Mean, Std Error (in this case is the root regression effect. mean square error divided by square root of the number of values used to compute the gro ...
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< 1 ... 173 174 175 176 177 178 179 180 181 ... 280 >

Student's t-test

A t-test is any statistical hypothesis test in which the test statistic follows a Student's t-distribution if the null hypothesis is supported. It can be used to determine if two sets of data are significantly different from each other, and is most commonly applied when the test statistic would follow a normal distribution if the value of a scaling term in the test statistic were known. When the scaling term is unknown and is replaced by an estimate based on the data, the test statistic (under certain conditions) follows a Student's t distribution.
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