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As an occupational health epidemiologist, you are required to measure the effect of stress on the workers in your manufacturing plant. Two different tests preveiously developed measure stress in industrial workers are selected; stress test alpha and stress test delta. The sensitivity and specificity of each test are shown below:
Stress Test Alpha Stress Test Delta
Sensitivity= 60% 75%
Specificity= 95% 90%
a. Which test generates the greatest proportion of FNs?
b. Which test genereates the greates proportion of FPs?
c. Which test would you prefer?
If he were to conduct a second study to reduce the maximum error of estimate to 6, about how many hard drives should he include in his new sample?
for a particular card game a standard deck of cards has all of the aces kings queens and jacks removed. among the 36
the amount of unused sick time for individual employees is uniformly distributed between 0 and 480 minutes. Based on this information, what is the probability that an employee will have less than 20 minutes of unused sick time?
Give a variable that could be used to stratify the population for each of the following studies. List at least four subcategories for each variable.
A director of an agency is hiring temporary help. In making plans, he has to know whether there isi any difference in the use of the agency at different seasons of the year.
The average age of the women was 36.97 with a standard deviation of 8.893. If a 95% confidence interval is calculated to estimate the difference between the two average ages, what is the margin of error? Assume both population standard deviations ..
a multiple choice question consist of 8 questions with five choices abcd or e.if all 8 answers are random guesses what
Create a mixed integer programming model for this problem.
question because of his good work jim philips gets a contract to build homes on three additional blocks in the
let y be a random variable with a density function given byfy 32y2 -1ltylt1fy 0 elsewherefind the density fuction
cupid is doing research about relationships between heterosexual humans heights and whether they couple up and get
mtv some students do homework with the tv on. anyone come to mind? some researchers want to see if people can work as
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