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The prevalence of a disease is 12%X screening test 1specificity of 80%.screening test 2 in population (n = 10,000). Two screening tests have been developed for this disease. Individuals first undergo , which has a sensitivity of 85% and Only individuals who test positive from screening test 1 undergo the more invasive , which has a sensitivity of 90% and a specificity of 80%. Please complete the following contingency tables:
Use the following information to answer questions 22-27. A screening test was developed for malaria. There were 55 malaria patients in the study and 95 controls. The test resulted in a 12.7% false negative rate and a 15% false positive rate.
Construct the appropriate 2x2 table with the information provided above (include labels for rows and columns). Round up answers to whole numbers. (10 points = 1 pt for each numeric cell and 1 pt for labels)
Use the fact that the confidence interval for the mean is in the for x- E to x+ E to compute the sample mean and the mazimal margin of error E.
A sample of 26 automobiles 2 yrs. old showed a standard deviation of $170. What is the test statistic for testing the difference between these population variances at alpha =.01?
The professor awards the top 30% grade of A, the next 30% grade of B, and the next 30% grade of C. With the last 10% receiving a Failing grade
Each stated characteristic is a sample estimate. The 95% confidence intervals are [0.07 to 0.09] for PD, [$160,000 to $200,000] for EAD, The expected loss becomes the interval
Daily production of gadgets is normally distributed with mean 1000 (μ) and standard deviation 100 (o). a) What is the probability that today’s production will be more than 950?
Find out the decision strategy company must follow, expected value of strategy, and maximum amount the company must pay market research firm for survey results.
Two divisions are cooperating in the production of a communications satellite. In order for the launch to be on time, both divisions must meet the deadline.
Based on your results, do you believe recharging an air conditioner really results in more refrigerant in the system? Why or why not?
Now make a scatter plot of data from 1982 to 1998 (again, use years since 1800). Determine a linear, power, or exponential model that explains the crude oil production during this time period.
The visual analog scale is often used to measure pain. The worst possible score is 10. Thirty patients who had the same operation were questioned.
A customer at Cavallaro's Fruit Stand picks a sample of 3 oranges at random from a crate containing 60 oranges, of which 4 are rotten.
an advertisement claims that chewing nocav gum reduces cavities. to test the claim you conduct a study in which 100
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