81. HIV testing Enzyme immunoassay (EIA) testsare used to screen blood specimens for the pres-ence of antibodies to HIV, the virus that causesAIDS. Antibodies indicate the presence of thevirus. The test is quite accurate but is not alwayscorrect. Here are approximate probabilities ofpositive and negative EIA outcomes when theblood tested does and does not actually containantibodies to HIV:21g325Test ResultTruthAntibodies present0.99850.0015Antibodies absent0.0060.994Suppose that 1% of a large population carries anti-bodies to HIV in their blood. We choose a personfrom this population at random. Given that the EIAtest is positive, find the probability that the personhas the antibody. Show your work.

Obtain the probability that the person has antibody given that EIA test is positive. The probability…

Answered: HIV testing Enzyme immunoassay (EIA)…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Activity: Answer the given problem. Given that P(S) = 0.3, P(S|Q) = 0.4, and P(Q) = 0.5, find the following probabilities: a. P(SnQ) b. P(QIS) c. P(S'IQ) d. P(S/Q') Assessment: Answer the given problem. 02 and D/O) - 0 3 Let T be the event
The statement below is true/false: A type II error is defined as rejecting H1 when it is true. Producers’ risk in rejecting product with good quality is a type I error. Power of a test is the probability of accepting H0 when it is false
Determine whether the results below appear to have statistical significance, and also determine whether the results have practical significance. In a study of a weight loss program, 6 subjects lost an average of 50 lbs. It is found that there is about a 39% chance of getting such results with a diet that has no effect . Does the weight loss program have statistical significance? A- No, the program is not statistically significant because the results are unlikely to occur by chance B- Yes, the program is statistically significant because the results are unlikely to occur by chance . C- No, the program is not statistically significant because the results are likely to occur by chance. D- Yes, the program is statistically significant because the results are likely to occur by chance .
A researcher test a hypothesis find that p value equal to .2. Explain why the researcher cannot claim that the probability that the H subscript 0 is true is .2? You choose an alpha level of .01 and then analyze your data. What is the probability that you will make a Type I error given that the null hypothesis is true? What is the probability that you will make a Type I error given that the null hypothesis is false?
Mm2
Infections in Childbirth The Centers for Disease Control and Prevention (CDC) conducted a randomized trial in South Africa designed to test the effectiveness of an inexpensive wipe to be used during childbirth to prevent infections.68 Half of the mothers were randomly assigned to have their birth canal wiped with a wipe treated with a drug called chlorohexidine before giving birth, and the other half to get wiped with a sterile wipe (a placebo). The response variable is whether or not the newborns develop an infection. The CDC hopes to find out whether there is evidence that babies delivered by the women getting the treated wipe are less likely to develop an infection. (a) Define the relevant parameter(s) and state the null and alternative hypotheses. (b) What is/are the sample statistic(s) to be used to test this claim? (c) If the results are statistically significant, what would that imply about the wipes and infections? (d) If the results are not…
A diagnostic test for disease X correctly identifies the disease 88% of the time. False positives occur 11%. It is estimated that 2.78% of the population suffers from disease X. Suppose the test is applied to a random individual from the population. Compute the following probabilities. The percentage chance that, given a negative result, the person does not have disease X= The percentage chance that, the person will be misclassified =
Pain medications sometimes come with side effects. One side effect is dizziness. A researcher wanted to determine if some pain medications produced more or less dizziness than others. The results from his study are shown in the table below. Use a test to determine if the proportion of people within each treatment group who experienced dizziness are the same at the α= .01 level of significance. Tordol Placebo Naproxen Tylenol Advil Dizziness 83 32 36 5 8 No dizziness 4063 1832 1330 382 337 1) Determine the null and alternative hypotheses. Select the correct pair. Ho: The proportion of people within each treatment group who experienced dizziness are the sameHa: The proportion of people within each treatment group who experienced dizziness are different Ho:The proportion of people within each treatment group who experienced dizziness are independentHa:The proportion of people within each treatment group who experienced dizziness are dependent 2) Determine the…
Infectious Disease Commonly used vaccines for influenza are trivalent and contain only one type of influenza B virus. They may be ineffective against other types of influenza B virus. A randomized clinical trial was performed among children 3 to 8 years of age in 8 countries. Children received either a quadrivalent vaccine (QIV) that had more than one influenza B virus or a trivalent Hepatitis A vaccine (control). An attack rate (i.e.,% of children who developed influenza) starting 14 days after vaccination until the end of the study was computed for each vaccine group, stratified by age. The following data were reported. age QIV group 3-4 5-8 3.75 1.71 Control group 5.64 5.17 (a) Suppose 3 children in a village ages 3, 5, and 7 are vaccinated with the QIV vaccine. What is the probability that at least one child among the 3 will get influenza? (Round your answer to four decimal places.) (b) Suppose that 80% of 3-4-year-old children and 70% of 5-8-year-old children in a village are…
1
Hi, I need help with this problem.
Education Level Of its age-appropriate residents, approximately 18.4% of the population in Blair county, Pennsylvania earned a bachelor’s degree or higher. What’s the probability of a randomly selected county being equal to or greater than 18.4%? Fluoride Levels A county in Kentucky has 6.7% of sampled homes above suggested fluoride levels. What’s the probability of a randomly selected county being equal or greater than 6.7%? Nitrate Levels A county in Hawaii has sampled home drinking water and found that 2.2% of their homes have nitrate levels above normal. What’s the probability of a randomly selected county being greater than or equal to 2.2%? Median Income Median income in Kent county, Delaware is $55,169. What’s the probability of a randomly selected county having greater than $55,169 median income? Percent Uninsured Dewey county, Oklahoma, has a 26% uninsured rate. What’s the probability of a randomly selected county having greater than 26% uninsurance rate? Median Age The…

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS