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 conduct a test of independence for a contingency table with 6 categories in the column variable and 6 categories in the row variable. You collect data from 936 subjects.What are the degrees of freedom for the χ2 distribution for this test?d.f. =
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HOw would you figure this out?
You intend to conduct a test of independence for a contingency table with 4 categories in the column variable and 4 categories in the row variable. You collect data from 380 subjects.What are the degrees of freedom for the χ2 distribution for this test?d.f. =
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find p value and its meaning please A survey of 1000 adults from a certain region asked, "If purchasing a used car made certain upgrades or features more affordable, what would be your preferred luxury upgrade?" The results indicated that 58% of the females and 51% of the males answered window tinting. The sample sizes of males and females were not provided. Suppose that of 600 females, 348 reported window tinting as their preferred luxury upgrade of choice, while of 400 males, 204 reported window tinting as their preferred luxury upgrade of choice. Complete parts (a) through (d) below. a. Is there evidence of a difference between males and females in the proportion who said they prefer window tinting as a luxury upgrade at the 0.05 level of significance? State the null and alternative hypotheses, where π1 is the population proportion of females who said they prefer window tinting as a luxury upgrade and π2 is the population proportion of males who said…
You are a process engineer for a company that manufactures widgets. A particular machine at your company has some downtime during the day on 36.5% of days. You decided to make some changes to how the machine is calibrated in an attempt to reduce downtime. 63 days after your changes were implemented, you find that the machine had some downtime during the day on 31.0% of days. Conduct a hypothesis test to determine if the proportion of days that the machine has downtime has decreased from before, with a= 0.1. * Using this information, what is the p in your analysis? Note: 1- Only round your final answer. Enter your final answer with 2 decimal places.
You want to compare differences in prior arrests across ethnicity in your study, you measured ethnicity as white =0 black =1 hispanic=2, and other =3. Prior arrests was recorded as the number of prior arrests. which test would you perform to see if arrests differ across diffrent ethnic categories? A. ANOVA B. T-test
You may need to use the appropriate appendix table or technology to answer this question. Of 290 female registered voters surveyed, 119 indicated they were planning to vote for the incumbent president. Of 425 male registered voters, 157 indicated they were planning to vote for the incumbent president. (a) Compute the test statistic. (Use female male. Round your answer to three decimal places.) (b) At a = 0.01, test to see if there is a significant difference between the population proportions of females and males who plan to vote for the incumbent president. (Use the p-value approach.) Calculate the p-value. (Round your answer to three decimal places.) p-value = What is your conclusion? O Do not reject Ho. We can conclude that there is a significant difference between the two poplation proportions. O Do not reject Ho. We cannot conclude that there is a significant difference between the two population proportions. O Reject Ho. We cannot conclude that there is a significant difference…
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The mechanics of a paired tt-test are very similar to a Student's tt-test.

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