What is the probability of getting a negative triple-testresult when the fetus actually has Down syndrome (i.e. afalse-negative result)?Remember:Pr[DS] = 0.001Pr[+ result | DS] = 0.60Pr[+ result | no DS] = 0.05BAYES' THEOREMPRIA B =PRIB AJPRIA]PRIB

The events are denoted as follows:DS: The fetus actually has Down syndrome.no DS: The fetus actually…

Answered: What is the probability of getting a…

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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Lenders tighten or loosen their standards for issuing credit as economic conditions change. One of the criteria lenders use to evaluate the creditworthiness of a potential borrower is her credit risk score, usually a FICO score. FICO scores range from 300 to 850. A consumer with a high FICO score is perceived to be a low credit risk to the lender and is more likely to be extended credit than a consumer with a low score. A credit card represents a line of credit, because the credit card holder obtains a loan whenever the card is used to pay for a purchase. A study of credit card accounts opened in 2002 found a mean FICO score for the credit card holder (at the time the card was issued) of 731 and a standard deviation of 76. [Source: Sumit Agarwal, John C. Driscoll, Xavier Gabaix, and David Laibson, "Learning in the Credit Card Market," Working Paper 13822, National Bureau of Economic Research (NBER), February 2008.] You conduct a hypothesis test to determine whether banks have tightened…
please help me to solve part g
Please see below.
H0:μ=12.8H0:μ=12.8H1:μ<12.8H1:μ<12.8Your sample consists of 45 subjects, with a mean of 12.3 and standard deviation of 1.27.Calculate the test statistic, rounded to 2 decimal places. You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly less than 0.28. Your sample data produce the test statistic z=−2.672z Find the p-value accurate to 4 decimal places.
If I change the alpha level from 0.05 to 0.01 The probability of a Type 1 error goes down The probability of a Type 2 error goes up a not b a and b
Adolescents commit an average of μ = 40 errors before they complete a standard test of their verbal skills. The distribution of error scores is approximately normal with a standard deviation of σ = 8. A researcher is testing the effect of a new method of teaching that increases the verbal skills of adolescents. A typical junior high school student is selected and given the verbal skills tutorial teaching. The student then finishes the verbal skill test with a total of X = 24 errors. What is the probability that an adolescent (without the verbal skills training) would score less than or equal to X = 24 errors? (use 4 decimal places)
You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.23. Thus you are performing a right-tailed test. Your sample data produce the test statistic z = 2.831. Find the p-value accurate to 4 decimal places. p-value =
I did this question already, I would just like some confirmation if my answers are correct. my answers to this problem were: Reject H0 and The test statistic falls within the region.
#2 Find the probability for a normal variable
You are conducting a study to see if the probability of a true negative on a test for a certain cancer is significantly more than 0.51. Thus you are performing a right-tailed test. Your sample data produce the test statistic z =1.872. Find the p-value accurate to 4 decimal places.p-value =
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What is the probability of getting a negative triple-test result when the fetus actually has Down syndrome (i.e. a false-negative result)? Remember: Pr[DS] =0.001 Pr[+ result | DS] = 0.60 Pr[+ result | no DS] = 0.05 BAYES' THEOREM PRIABI= PRIB AIPRIA PRIB