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- Suppose 84% of hypertensives and 23% of normotensives are classified as hypertensive by an automated blood-pressure machine. What are the Predictive value positive and Predictive value Negative of the machine, assuming 20% of the adult population is hypertensive?how to solve this show on paperYou may use homogenous, exact/inexact, linear, Bernoulli, or second order reducible to first order
- A study of swab test for COVID-19 in the United Kingdom found that they had a false negative rate between 2 and 33%. This is in part because the test is more sensitive a certain time after infection. The false positive rate was between 0.8 and 4%. For the purposes of this problem, let's assume that the false negative rate is 15% and the false positive rate is 2%. The current positivity rate in NYC is 6%which gives us an estimate of the prevalence (fraction of NYC residents with COVID). a) Imagine that a NYC resident takes the swab test used in the UK and the test comes back positive. What is the probability that they have COVID-19? b) Imagine that a NYC resident takes the swab test used in the UK and the test comes back positive. What is the probability that they do not have COVID-19? c) Imagine that a NYC resident takes the swab test used in the UK and the test comes back negative. What is the probability that they do not have COVID-19? d) Imagine that a NYC resident takes the swab…General Directi0n: F0r activities that inv0lve s0luti0n to problems, perform the steps in conducting hypothesis testing such as stating of problems and hypothesis, and so on.In how many distinguishable ways can the letters in MITOSIS be written?
- If the alleles A and B of the cystic fibrosis gene occur in a population with frequencies p and 1 - p (where pis between 0 and 1), then the frequency of heterozygous carriers (carriers with both alleles) is 2p(l - p). Which value of p gives the largest frequency of heterozygous carriers?The process for cleaning up waste in a nuclear reactor core room eliminates 85% of the waste present in the area. If there is 1.7 kg of waste in the room at the beginning of the monitoring period and 2 kg of additionalwaste are generated each week, determine a recurrence relation and initial conditions describing the amount wn, of waste in the core room at the end of week n of the monitoring period.What is the mistake in Vadim's work?
- To inspect the quality of the screens for mobile phones produced by Company X, two separate inspection devices are used to test the screens for defects. Basically, a specific screen is tested once using the two inspection devices. Device 1 can detect the presence of defects 99.3% of the time, whereas Device 2 can detect defects 99.7% of the time. Assume that the 2 devices are operating independently from each other. One day, four defective screens were sent for inspection. Let X represent the number of screens that will be correctly tagged as defective by Device 1, while Y represents the number of screens that will be correctly tagged as defective by Device 2. Are X and Y independent? explainPlease Show Each and Every Working VERY CLEARLY. There are NO multi-questions here, only just multi-PART questions which are CONNECTED to each other, and hence, Please do NOT Leave any, Thank You! verify differentialA new drug to treat psoriasis has been developed and is in clinical testing. Assume that those individuals given the drug are examined before receiving the treatment and then again after receiving the treatment to determine if there was a change in their symptom status. If the initial results showed that 2.0% of individuals entered the study in remission, 77.0% of individuals entered the study with mild symptoms, 16.0% of individuals entered the study with moderate symptoms, and 5.0% entered the study with severe symptoms calculate and interpret a chi-squared test to determine if the drug was effective treating psoriasis given the information below from the final examination. A. We reject H0 because 6628.08 is greater than 11.07. We have statistically significant evidence at the alpha equals .05 level to show that the distribution of the severity of psoriasis cases at the end of the clinical trial for the sample is different from the distribution of the severity of psoriasis…