A Methodology for the Health Sciences - part 8 ppt
A Methodology for the Health Sciences - part 8 ppt
... death rate among Hispanic males.
(b) Calculate the crude death rate among non-Hispanic males.
(c) Compare parts (a) and (b) using an appropriate test.
(d) Calculate the SMR using non-Hispanic males ... this approach is wasteful by throwing away
valuable and needed information. This section presents an approach that allows the rates to use
all the available information if certain assum...
A Methodology for the Health Sciences - part 2 pptx
... 15 8 14 11 3 7 9
−6202 481 582 67
−7 16 15 8 14 11 3 5 6
81 0 9 81 114 6 4 4
−95 588 9932
−102 283 51121
−111 181 11411
Total 888 888 888 888 888 8
a
4
3.03 3.20 1. 78 2. 38 1.97 1.36 12.15. 78
(The numbers are ... from the hypothesized value of a parameter,
the smaller the area in the tail.
INFERENCE ABOUT THE MEAN OF A POPULATION 87
2. We can increase our confiden...
A Methodology for the Health Sciences - part 1 doc
... We use a capital letter for the name of a variable and the corresponding
lowercase letter for a value. For example, Y = a atoxin level (the name of the variable); y = 30
(the value of a atoxin ... numbers are manipulated to produce
values that cannot occur for example, the average American family” has 2.125 children).
Other quantitative variables have values that are...
A Methodology for the Health Sciences - part 3 pps
... Distribution
Normal Approximation to the Poisson Distribution
The Poisson distribution has the property that the mean and variance are equal. For the mean
large, say ≥ 100, the normal approximation can be ... Nevertheless, because both judges have a large proportion of the cases
in the first category, in 82 % of the cases there is agreement; that is, P
A
= 0 .82 . We h...
A Methodology for the Health Sciences - part 4 pot
... before a category with K tied observations, the average rank for the k tied observations is
average rank =
2J + K + 1
2
(9)
For these data, the average ranks are computed as follows:
KJAverage ... is detailed in the box in the
lower left-hand corner. The value predicted from the equation was 174, whereas the actual
melanoma rate for this state was 186 . Thus, the res...
A Methodology for the Health Sciences - part 5 pdf
... 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 motivating example
above, ... three assays; in the other
laboratories each technician runs two assays. There are three factors: laboratories, technicians,
and assays; the arrangement is not factorial: t...
A Methodology for the Health Sciences - part 6 potx
... into halves at random. One can estimate the
parameters from one-half of the data and then predict the values for the remaining unused half
of the data. The evaluation of the fit can be performed ... 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...
A Methodology for the Health Sciences - part 7 potx
... 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 subgroup analysis. Aside ... and therefore where it is
desirable to aim at drawing reasonably firm conclusions from the same data as used in exploratory
analysis.
What statistical approaches and principles can be use...
A Methodology for the Health Sciences - part 9 pps
... three patients with the covariate values given in Table 16. 18.
At the mean values of the data, the one- and two-year survival were 88 .0%
and 80 .16%, respectively. Find the probability of one- and ... approximations, and several correc-
tions are available to get closer to the exact value. Exact values for equal sample sizes have been
tabulated in Haseman [19 78] . Adjustme...
A Methodology for the Health Sciences - part 10 pps
... essential, as part of one’s occupation, then again, larger
risks are acceptable. A “dread” hazard is often perceived as of greater risk than a common
hazard. The most conspicuous example is an airplane ... can be measured by the extent to which a technician’s
readings are from a 45
◦
line. A paper by Lin [1 989 ] nicely provides a framework for analyzing
these data. In our...
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