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Explanation of all formula used for analysis (which ...
Aug 04, 2011 · Explanation of all formula used for analysis (which equations and why): The initial standard deviation was calculated using all of the participating laboratory’s reported values. If a correction fell outside of two standard deviations, it was omitted in the calculation of the adjusted statistics.
[DOC File]Formula Sheet and List of Symbols, Basic Statistical Inference
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Formula Sheet and List of Symbols, Basic Statistical Inference. Symbol What it Represents. X variable. sample mean. μ population mean. s sample standard deviation. s2 sample variance. σ population standard deviation. σ2 population variance. sample proportion. p population proportion. q 1-p. n sample size. α significance level
[DOCX File]Calculating the Standard Deviation - Anne Gloag's Math Page
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For each data value, calculate how many standard deviations the value is away from its mean. Use the formula: value = mean + z (standard deviation); solve for z. z = (value − mean)/standard deviation. Compare the results of this calculation. The number of standard deviations away from the mean is called a "z-score " In symbols, the formulas ...
[DOC File]Computation Formula for s:
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From the total of the second column, we see that Σx2 = _____. By squaring the total of the first column, we get (Σx)2 = _____. Now all we have to do is plug these numbers into our formula from above. SSx = Σx2 - (Σx)2 = n. Finally, we will evaluate the sample standard deviation by using our formula. Since n = 10, then n – 1 = _____.
[DOC File]CALCULATION OF REPEATABILITY AND REPRODUCIBILITY
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Between laboratories variance, as well as formula of variance, shows the gap condition of the detection ratio of each laboratories and the entire ratio. Moreover, reproducibility variance is defined total of repeatability variance and between laboratories variance as in ISO 5725.
[DOC File]Calculating Work and Power by Climbing Stairs
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Calculating Work and Power by Climbing Stairs Name:_____ Introduction: In this activity, you will find out if a person does more work walking up a flight of stairs or running up the same flight of stairs by having you or someone else actually do this.
[DOC File]CALCULATING STANDARD DEVIATION WORKSHEET
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Sep 26, 2015 · The standard deviation is used to tell how far on average any data point is from the mean. The smaller the standard deviation, he closer the scores are on average to the mean. When the standard deviation is large, the scores are more widely spread on average from the mean. The . standard deviation. is calculated as the . average distance from ...
[DOC File]Advanced Excel - Statistical functions & formulae
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Mean Results. and then enter the following formula in cell G2 =sum(D2,E2,F2)/3. and then copy the formula using the fill handle down to row 31. This will calculate the average exam score for each pupil. Recoding a variable. Often analysis requires that we recode a variable.
[DOC File]DMR Calculations
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There are two ways to go about calculating the geometric mean. The two procedures are really just different ways of doing the same thing and either way yields the same result, but both require the use of a scientific calculator. Calculators adequate for performing such operations as the geometric mean can probably be purchased for less than $15.00.
[DOC File]Calculating Percentages for Time Spent During Day, Week ...
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Instructions for calculating time spent during day, week, month and year. This is designed to help you calculate percentages of time that you perform various duties/tasks.
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