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One important aspect of medical diagnosis is its reproducibility. Suppose that two different doctors examine 100 patients for dyspnea in a respiratory disease clinic and that Doctor A diagnosed 15 patients as having dyspnea, doctor B diagnosed 10 patients as having dyspnea, and both Doctor A and Doctor B diagnosed 7 patients as having dyspnea.
Compute the Kappa statistic and its standard error regarding reproducibility of the diagnosis of dyspnea in the clinic.
Determine fraction of employees cost between $1,500 and $2,000 per year?
A sample proportion is calculated from a sample size of 394. How large of a sample would we need in order to decrease the standard error by a factor of 9?
What is the minimum sample size needed in order for you to be 95% confident that your estimate is within 5 of µ? Use the value 20 for the population standard deviation of scores on this subsection.
For a population with a mean of μ = 60 and a standard deviation of σ = 24, find the Z score corresponding to each of the following samples.
Determine 95% confidence interval evaluate for average number of years served by all Supreme Court justices?
If the true mean for Saturday sales is now $4500, what is the probability of accepting the (false) null hypothesis.
Infer that the difference in the level of satisfaction with service between the two branches.
In terms of p , the researcher should test which of the following null and alternative hypotheses?
Using the results, describe the effect of an outlier or extreme value on the confidence interval.
Using the empirical rule what percentage of adults is 25 - 45 has iq score bet 70 and 130.
Multiple choice questions based on regression - dependent variable Y and an independent variable X is provided.
Registration process takes, on average, 2 minutes per patient. Among patients who get prescriptions, average time spent with doctor is 5 minutes. Among those admitted to hospital, average time is 30 minutes.
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