sensitivity and Specificity tests, Applied Statistics

Assignment Help:
The prevalence of undetected diabetes in a population to be screened is approximately 1.5% and it is assumed that 10,000 persons will be screened. The screening test will measure blood serum sugar content. A value of 180 mg percent or higher is considered positive. The sensitivity and the specificity associated with this screening are 22.9% and 99.8% respectively.
a. Set up a fourfold table with the appropriate numbers in each cell of the table. (3 pts. per box)

+ - Total




Prevalence = 1.5%
Population = 10,000
Sensitivity = 22.9%
Specificity = 99.8%

Calculate the following values: (3 points each)
b. The percentage of false positive error rate.
c. The percentage of false negative error rate.
d. The predictive value of a positive test.
e. The predictive value of a negative test.

f. Based on the calculations above, how many false positives and negatives will occur if 100,000 people are screened?

Related Discussions:- sensitivity and Specificity tests

Ogive percentile, how do i determine the 40th percentile in an ogive graph

how do i determine the 40th percentile in an ogive graph

Sampling theory, difference between large sample test and small sample test...

difference between large sample test and small sample test

Mean absolute deviation, Mean Absolute Deviation To avoid the problem o...

Mean Absolute Deviation To avoid the problem of positive and negative deviations canceling out each other, we can use the Mean Absolute Deviation which is given by

Expected utility maximizer, The investor has constant wealth 1 and is o?ere...

The investor has constant wealth 1 and is o?ered to invest in shares of a project that either gains 3=2 or loses 1 with equal probabilities. Therefore, if the investor obtains sha

Business reporting and analysis, You are a business analyst working for a c...

You are a business analyst working for a company called Combined Computers Pty Ltd. You have been asked to prepare a business report with statistics in it for the managing director

Measures of dispersion, calculate variance and standard deviation of the f...

calculate variance and standard deviation of the following sample 12,22,32,13,12,23,34,52,56,23,44,32,11,11

Good measure of quality, Education seems to be a very difficult field in wh...

Education seems to be a very difficult field in which to use quality methods. One possible outcome measures for colleges is the graduation rate (the percentage of the students matr

B) Distinguish between:, X 110 120 130 120 140 135 155 160 165 155 ...

X 110 120 130 120 140 135 155 160 165 155 Y 12 18 20 15 25 30 35 20 25 10

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd