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Ascertainment Bias
A possible form of the bias, mainly in retrospective studies, which arises from a relationship amongst the exposure to the risk factor and the probability of detecting the event of interest. In a study comparing women by means of cervical cancer and a control group, for instance, an excess of oral contraceptive use among the cases might possibly be due to more regular screening for disease prevailing among the women are known to be taking the pill.
Measures of Dispersion (Variation) A measure of dispersion is to measure the spread among values of observations in a data set. There are three commonly used measures of disper
Which of the following statements are correct interpretations of a 95% confidence interval for μ? (a) 95% of the observations in the sample will be contained in the confidence i
Can I get help with statistics?
An audit of the accounting records of Loch Ness Ltd. for the year ending 30 June 2012 discovered that the ending inventory balance was over-valued by $35,000. Upon further investig
Hi, do you do correlation assignment
1. Use the portal method to determine the approximate vertical reactions. Circles represent pinned connections. 2. A steel 2" x 3" rectangular bar is 9' long (E = 29,000ksi
any of your writer able to use the database given to generate the null, alternative..etc.. into a power point presentation
The Equity accounts of Blydskap Ltd are shown below: Ordinary Share Capital (R2 par value) R200 000 Share Premium
Reproduction rates: if the majority of births are those of boys the population is bound to decrease while the reverse will be the case if the majority of births are girls. Similar
conceptof probality, theoretical, distribution, normal,binomial and poisson
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