A Methodology for the Health Sciences - part 2 pptx
A Methodology for the Health Sciences - part 2 pptx
... statistically independent random variables, then for any two constants a 1 and a 2 , the random variable W = a 1 Y 1 + a 2 Y 2 has mean and variance E(W ) = a 1 E(Y 1 ) +a 2 E(Y 2 ) Var(W ) = a 2 1 Var(Y 1 ) ... value. Figure 4 .20 The farther away the observed value of a statistic from the hypothesized value of a parameter, the smaller the area in...
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A Methodology for the Health Sciences - part 1 doc
... 22 4.5+ and 22 5.5− is rounded off to 22 5 (22 4.5+ indicates a value greater than 22 4.5 by some arbitrarily small amount, and similarly, 22 5.5− indicates a value less than 22 5.5). Thus, the upper ... that cannot occur for example, the average American family” has 2. 125 children). Other quantitative variables have values that are potentially associated with real numbers—suc...
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A Methodology for the Health Sciences - part 3 pps
... in the χ 2 -test for 2 2tables.American Statistician, 21 : 28 – 32. Hanley, J. A. , and Lippman-Hand, A. [1983]. If nothing goes wrong, is everything alright? Journal of the American Medical Association, ... 1/k.Thek intervals are (−∞ ,a 1 ] interval 1 (a 1 ,a 2 ] interval 2 . . . . . . (a k 2 ,a k−1 ] interval (k − 1) (a k−1 , ∞) interval k Let Z i be a val...
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A Methodology for the Health Sciences - part 4 pot
... 22 68 23 25 22 11 1871 20 41 22 68 23 25 1559 1304 22 96 27 50 22 96 21 83 326 0 3686 28 35 28 92 3430 34 02 226 8 24 95 326 0 27 78 24 95 23 53 3515 323 2 20 70 1673 21 55 25 52 1559 24 66 1956 1701 1786 1843 28 35 26 93 20 98 ... Twins SIDS Non-SIDS SIDS Non-SIDS SIDS Non-SIDS SIDS Non-SIDS 1474 20 98 1701 1956 23 81 26 08 1956 1588 3657 3119 25 80 24 38 28...
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A Methodology for the Health Sciences - part 5 pdf
... fact voting for Buchanan. ONE-WAY ANALYSIS OF VARIANCE 361 10 .2. 2 Using the Normal Distribution Model Basic Approach The one-way analysis of variance is a generalization of the t-test. As in the ... electoral data for the state of Florida for the 20 00 elections for president and for governor of Florida. The major Democratic and Republican parties each had a can...
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A Methodology for the Health Sciences - part 6 potx
... nonsignificant, we may accept the quadratic equation as appropriate. Figure 11.5 is a scatter diagram of the data as well as the linear and quadratic curves. Note that the quadratic curve is higher at the ... data and then predict the values for the remaining unused half of the data. The evaluation of the fit can be performed using the other half of the data. This gi...
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A Methodology for the Health Sciences - part 7 potx
... Table 12. 11 we compare the critical values for the three methods for the case of one-way anova with k treatments and 20 degrees of freedom for error MS. With two treatments (k = 2 and therefore ... hoc analysis. Such an analysis is not explicitly planned at the start of the study but suggested by the data. Other terms associated with such analyses are data driven and sub...
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A Methodology for the Health Sciences - part 8 ppt
... VP is the variance explained by the factor. Table 14 .20 Exercise Data for Problem 14.4 Univariate Summary Statistics Variable Mean Standard Deviation 1 DURAT 514.883 72 77.345 92 2VO 2MAX 29 .05349 ... presupposes familiarity with matrix algebra. Let A beamatrixandA ′ denote the transpose of A; ifA is square, let A be the determinant of A and Tr (A) be the trace of A. C...
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A Methodology for the Health Sciences - part 9 pps
... observa- tions that are two visits apart have correlation ρ 2 , and in general all pairs of observations that are k visits apart have correlation ρ k . A banded correlation matrix will have a total ... year apart of 0.734, 0.733, and 0.806. For measurements two years apart, the correlation decreases slightly to 0.585 and 0.695. Finally, measurements that are three years apart have...
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A Methodology for the Health Sciences - part 10 pps
... 193 20 0 21 2 19 16 1 92 203 21 2 22 2 23 0 24 4 20 14 178 188 197 20 7 21 3 22 6 19 17 20 3 21 4 22 4 23 5 24 2 25 7 20 15 190 20 0 21 0 22 0 22 7 24 1 19 18 21 4 22 6 23 6 24 8 25 5 27 1 20 16 20 1 21 3 22 2 23 3 24 1 25 5 19 ... 19 22 6 23 8 24 8 26 0 26 8 28 4 20 17 21 3 22 5 23 5 24 7 25 4 27 0 20 1 19 20 — — — — 20 18 22 5 23 7 24 8...
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