A screening test for a newly discovered disease is being evaluated. To determine the effectiveness of the new test, it was administered to 880 workers, and 120 of theindividuals diagnosed with the disease tested positive.A negative test finding occurred in 50 people who had the disease. A total of 40 persons not diseased tested positive for it.Construct a 2 x 2 table similar to Table 12-1 and calculate the following:1. Prevalence of the disease2. Sensitivity3. Specificity4. Predictive value positive5. Predictive value negative6. Likelihood ratio positive7. Likelihood ratio negative8. Overall accuracy.

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Answered: A screening test for a newly discovered…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The recidivism rate for convicted sex offenders is 15%. A warden suspects that this percent is higher if the sex offender is also a drug addict. Of the 377 convicted sex offenders who were also drug addicts, 64 of them became repeat offenders. What can be concluded at the a = 0.01 level of significance?
A psychologist has tested 400 people on areas that make up the Sleepiness and Associated Sensations Scale. Each individualis employed in one of four professions (Medical, Legal, Economics and Psychology). Each subject participates in astructured interview, during which the clinical psychologist makes ratings based on fatigue, lethargy, and energy.The data with the results can be found in the sheet labelled “Question 2”.a. Conduct the relevant test to determine if the individual items that make up the Sleepiness and Associated SensationsScale differs based on profession. b. Test the relevant assumptions associated with this test. c. JASP input and output files.
A college administrator wants to know if there is a significant difference between sexual orientation and level of family support for students at their college. The administrator takes a random sample of students who identify as gay/lesbian, bisexual or heterosexual/straight. There were 22 students sampled in each category. A measure of family support is given with higher scores indicating more family support. The means are as follows: Gay/lesbian Bisexual Heterosexual/Straight MG/L = 16 MBi = 17 MH/S = 22 Source SS df MS F Orientation 300 Error 2961 Total What is the value of MS error?
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