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- GMAT = 172.4 + 78.9 GPA + 0.230 SATM + 0.110 SATV Where GMAT = student’s score on the GMAT, GPA = student’s GPA in economics classes (4 = A, 3 = B ...), SATM = student’s score on the math portion of the SAT, and SATV = student’s score on the verbal portion of the SAT If John scores 60 points higher than Bill on the math part of the SAT, ceteris paribus, estimate the difference in his and Bill’s GMAT scores. I am very confused on where to even start with this question, how do I set this up to solve it?If P(E)=0.40, P(E or F)=0.65, and P(E and F)=0.05, find P(F). Question content area bottom Part 1 P(F)=enter your response here (Simplify your answer.)The first test a doctor would order to determine whether a person is infected with HIV (the virus that causes AIDS) is the ELISA test. It detects antibodies and antigens for HIV. A study in Statistical Science by J. Gastwirth estimated that, if the person is actually infected with HIV, this test produces a positive result 97.7% of the time. If a person is not infected with HIV, the test result is negative 92.6% of the time. According the the US Centers for Disease Control (CDC), an estimated 1.1 million Americans out of a population of 321 million were infected with HIV in 2015. Using the information above, determine the probability that a randomly selected person whose ELISA test is positive actually is infected with HIV? a. What is the probability that a randomly selected American is infected with HIV? b. Using the answer to part (a) and the conditional probabilities of positive and negative ELISA test results, fill out the contingency table below: ELISA Test Result…
- 20Intelligence and literacy are examples of characteristics. O a. Questionnable O b. Quantitative OC. Discrete O d. QualitativeAllergic reactions to poison ivy can be miserable. Plant oils cause the reaction. Researchers at Allergy Institute did a study to determine the effects of washing the oil off within 5 minutes of exposure. A random sample of 1000 people with known allergies to poison ivy participated in the study. Oil from the poison ivy plant was rubbed on a patch of skin. For 500 of the subjects, it was washed off within 5 minutes. For the other 500 subjects, the oil was washed off after 5 minutes. The results are summarized in the following table. Reaction Within 5 Minutes After 5 Minutes Row Total NoneMildStrong 4025543 64323113 466378156 Column Total 500 500 1000 Let's use the following notation for the various events: W = washing oil off within 5 minutes, A = washing oil off after 5 minutes, N = no reaction, M = mild reaction, S = strong reaction. Find the following probabilities for a person selected at random from this sample of 1000 subjects. (Use 3 decimal places.) (d) P(N and…
- ideo Lec e so oxtra Pra Jorkshe ee sc A medical researcher says that less than 72% of adults in a certain country think that healthy children should be required to be vaccinated. In a random sample of 600 Fables (fo adults in that country, 68% think that healthy children should be required to be vaccinated. At a = 0.10, is there enough evidence to support the researcher's claim? Complete parts (a) through (e) below. e sc Assignme (a) ldentify the claim and state Ho and H. Identify the claim in this scenario. Select the correct choice below and fill in the answer box to complete your choice. (Type an integer or a decimal. Do not round.) Gradeboc e sc Email O A. Less than % of adults in the country think that healthy children should be required to be vaccinated. O B. More than % of adults in the country think that healthy children should be required to be vaccinated. еТеxt OC. % of adults in the country think that healthy children should be required to be vaccinated. Accessibl Resource O…What is the empirical formula for C10H2005? O C₂H5O O CH,O OCHO3 OCHO OC₂H₂O Submit Provide Feedback Request AnswerThe salutian of the hamo genous
- truo or falseAn instructor for a test preparation course claims that the course will improve the test scores of students. The table shows the critical reading scores for 14 students the first two times they took the test. Before taking the test for the second time, the students took the instructor's course to try to improve their critical reading test scores. At a = 0.01, is there enough evidence to support the instructor's claim? Complete parts (a) through (f). Student Score on first test Score on second test 450 698 674 448 489 630 496 543 636 558 643 407 374 493 10 11 12 13 14 D 444 635 616 409 545 605 516 395 561 471 632 387 337 461 1 2 3 4 7 8 9. (b) Find the critical value(s) and identify the rejection region(s). (Use a comma to separate answers as needed. Type an integer or a decimal, Round to three decimal places as needed.) Identify the rejection region(s). Choose the correct answer below. O A. t>3.012 O B. t 2.650 O C. t 3.012 Click to select your answer(s). 225 PM 12/17/2020