GynecologyA drug company is developing a new pregnancy-test kit for use on an outpatient basis. The company uses the pregnancy test on 100 women who are known to be pregnant, for whom 97 test results are positive. The company uses the pregnancy test on 100 other women who are known to not be pregnant, of whom 98 test negative.(a) What is the sensitivity of the test?(b) What is the specificity of the test?The company anticipates that of the women who will use the pregnancy-test kit, 10% will actually be pregnant.(c) What is the PV* of the test? (Round your answer to four decimal places.)(d) Suppose the "cost" of a false negative (2c) is twice that of a false positive (c) (because for a false negative prenatal care would be delayed during the first trimester of pregnancy). If the standard home pregnancy-test kit (made by another drug company) has a sensitivity of 0.96 and a specificity of 0.96, then which test (the new or standard) will cost the leastper woman using it in the general population and by how much?The ---Select---✔ test will cost the least per woman using it in the population. The difference in price (calculated as higher price - lower price) is

Answered: Image /qna-images/answer/51fd29ae-566a-4787-8e3f-ec36aab4d855.jpg

Answered: drug company is developing a new…

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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You intend to make a "new improved" claim for your product but because you do not wish to be fined by the ACCC for misleading consumers, you want to ensure that your claim is real. You carry out a discrimination test to test whether panellists can tell the difference between the "original" and the "new improved" version of your product. 25 Panellists do the test on the Monday and then repeat the test on the Wednesday. How are you going to analyse the replicate data, and why is the method of analysis appropriate? What is the chance of a panellist guessing the target sample using the 5-AFC method? O 0.25 1/5 O 4/5 O 1/4
According to the Washington Post, 45% of all Americans are born with brown eyes. Consider a random sample of 80 adults from New York city. We found 32 with brown eyes.(a) Is there suffcient evidence at the 0.01 level of signicance to indicate that the proportion of brown- eyed adults in New York differs from the proportion of Americans who are born with brown eyes? (b) Is there suffcient evidence at the 0.05 level of signicance to indicate that the proportion of brown-eyed adults in New York is less than the proportion of Americans who are born with brown eyes?
A personality test has a subsection designed to assess the "honesty" of the test-taker. Suppose that you're interested in the mean score, 4, on this subsection among the general population. You decide that you'll use the mean of a random sample of scores on this subsection to estimate L. What is the minimum sample size needed in order for you to be 90% confident that your estimate is within 5 of u? Use the value 21 for the population standard deviation of scores on this subsection. Carry your intermediate computations to at least three decimal places. Write your answer as a whole number (and make sure that it is the minimum whole number that satisfies the requirements). (If necessary, consult a list of formulas.) ?
What is the purpose of a hypothesis test?
Can you help me please
Males and females were asked what they would do if they received a $100 bill in the mail that was addressed to their neighbor, but had been incorrectly delivered to them. Of the 70 males sampled, 55 said yes they would return it to their neighbor. Of the 130 females sampled, 120 said yes. The overall question is: Is this sufficient evidence to say that the two true proportions are different? Assume that the p-value turns out to be .027 (again not the correct p-value for this situation but use it to answer this question). What is your decision on this hypothesis test using a 5% level of significance? O Fail to reject the null hypothesis Reject the null hypothesis
Is there an association between daily screen time and exercise habits in high school students? Mia selects a random sample of 123 high school students and categorizes them into 1 of 3 categories of screen time and whether they exercise. She would like to determine if there is convincing evidence of an association. Let = 0.05. What are the hypotheses for this test? H0: There is an association between daily screen time and exercise habits in high school students.Ha: There is no association between daily screen time and exercise habits in high school students.H0: There is no association between daily screen time and exercise habits in high school students.Ha: There is an association between daily screen time and exercise habits in high school students.H0: There is no difference in the distribution of daily screen time and exercise habits in high school students.Ha: There is a difference in the distribution of daily screen time and exercise habits in high school students.H0: There is a…
The mechanics of a paired tt-test are very similar to a Student's tt-test.
What test should I use for this problem?

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