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Appendix_C-Revised
Appendix_C-Revised

... where x1, , xn are the n observations in the sample, fˆ ( x*) denotes the estimated density function, x* is the value at which we wish to evaluate the density, and h and K [] are the “bandwidth” and “kernel function” that we now consider. The density estimator is rather like a histogram, in which ...
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Copmaring 2 populations896 KB

5.1-5.3 Guided Notes - Pendleton County Schools
5.1-5.3 Guided Notes - Pendleton County Schools

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Ritchey_Ch10 - Investigadores CIDE

... • The small sample t-test applies when the sample size, n < 121; we use the t-distribution table • However, regardless of sample size, all single-sample means tests are typically referred to as t-tests because the Z-test is a special case of a t-test, a t-test where n > 121; the t-distribution table ...
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... 5. The employment’s salary at seed company, abbreviated, as follows : 18, 15, 21, 19, 13, 15, 14, 23, 18 and 16 rupiah. If these abbreviation is real salary divide Rp. 100.000,-, find the mean, variance and deviation standard of them. 6. Computer-aided statistical calculations. Calculation of the d ...
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Lecture 6

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Statistics final reviewF-06.tst - TestGen

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Chapter 7 Section 1 PowerPoint

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Solve The Problem. - FIU Faculty Websites

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< 1 ... 141 142 143 144 145 146 147 148 149 ... 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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