what is a sigma algebra
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- Hello! Please click on both images to view the question in full.Doctor Specialties Below are listed the numbers of doctors in various specialties by gender. Internal Medicine Psychiatry Pathology Male 106,164 27,319 12,551 Female 49,541 14,066 6620 Send data to Excel Choose 1 doctor at random. Part 1 of 4 (a) Find P (male linternal medicine), Round your answer to three decimal places. P (malelinternal medicine) = 1. Correct Answer: P (male internal medicine) = 0.682 Part 2 of 4 (b) Find P(psychiatry female). Round your answer to three decimal places. P(psychiatry female) = Correct Answer: P (psychiatry female) = 0.2 Part 3 of 4 (c) Are the characteristics "female" and "psychiatry" independent? Yes Correct Answer: Are the characteristics "female" and "psychiatry" independent? NoThe 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…
- A biopsychologist researches the relationship between migraine medication and serotonin syndrome. He collects data that reports patient self-reports medication dosage and the number of serotonin syndrome symptoms. What statistical procedure should you use to analyze these data? O one sample z test one sample t test O independent groups t test Pearson's rA poll reported that 63%of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below.A hypothesis test involves a comparison of which two elements? O research results from a sample and a hypothesis about a population research results from a population and a hypothesis about a sample research results from a population and a hypothesis about the population research results from a sample and a hypothesis about the sample
- What are the effects of repeated exposure to an advertising message? The answer may depend on both the length of the ad and how often it is repeated. And experiment investigated this question using undergraduate students. All students viewed a 40 minute television program that included ads for a new smartphone. Some subjects saw a 30-second commercial others, a 90-second commercial. The same commercial was shown either one, three, or 5 times during the program. After viewing, all students answered questions about there recall of the ad, their attitudes towards the smartphone, and there intentions to purchase it. In this experiment, the length of the commercial and the number of times it was shown are. (A) the responses. (B) the blocking variables. (C) lurking variables. (D) the explanatory variables.Listed below are PSAT scores and SAT scores from prospective college applicants. The scores were reported by participants who responded to a request posted by the website talk.collegeconfidential.com. Does is appear the PSAT scores can predict SAT scores? On what do you base your answer? PSAT 183 207 167 207 197 142 193 176 SAT 2200 2040 1890 2380 2290 2070 2370 1980Jata
- Thanks! Question is attachedIf P(high) = 0.36, P(low) = 0.64, P(favorable | high) = 0.94, and P(unfavorable | low) = 0.63, then what is P(favorable)? 0.0600 0.3384 0.3600 0.5752An apple a day keeps the doctor away. A physical education teacher at a high school wanting toincrease awareness on issues of nutrition and health asked her students at the beginning of the semesterwhether they believed the expression “an apple a day keeps the doctor away”, and 40% of the studentsresponded yes. Throughout the semester she started each class with a brief discussion of a study highlightingpositive effects of eating more fruits and vegetables. She conducted the same apple-a-day survey at the endof the semester, and this time 60% of the students responded yes. Can she used a two-proportion methodfrom this section for this analysis? Explain your reasoning.
