In screening for a COVID-19, the probability that a healthy person wrongly gets a positive result is 0.04. The probability that a diseased person wrongly gets a negative result is 0.002. The overall rate of the disease in the population being screened is 1%. If my COVID-19 test gives a positive result, what is the probability I actually have the disease? (8 points)
Q: Hypertension It has been found that 26% of men 20 years and older suffer from hypertension (high…
A: From the provided information, x1=45n1=133x2=59n2=133α=0.10
Q: A sample of n = 17 observations is drawn from a normal population with u = 920 and o = 200. Find…
A: GivenMean(μ)=920standard deviation(σ)=200sample size(n)=17
Q: The power of a test is 0.873. What is the probability of a Type II error?
A: Power of a test is the probability of correctly rejecting H0 that is the null hypothesis and Type 2…
Q: A statistics professor gave an exam on performing the T-Test with σ unknown. The exam had the bonus…
A: Given; The calculator output( rounding to two decimal places ) 92 85 84 70 80 85 99…
Q: Suppose that 1 out of 1000 people tin a population have a particular disease. A test is developed…
A: It is given that 1 out of 1000 people in a population have a particular disease.
Q: It is known that 30% of adult females are experiencing sleep disorder. If 17 adult females are…
A:
Q: A random sample of two Americans is selected. The probability that neither will have type O blood is
A: Solution-: We have following table: We find the the probability that neither will have type O blood…
Q: In a large population, 5% are infected with a certain disease. If you take a random sample of 30,…
A: Given,n=30p=0.05Let x=no.of people infected with certain diseasex~Binomial(n=300 , p=0.05)P(X=x)=Cx…
Q: 6.10. The probability of hitting the target with one shot is 0.8. Find the probability that with 100…
A:
Q: The probability that an item will survive a 1000-hour mission is 0.4. If the item is oper- ating 800…
A:
Q: Suppose the probablility of a part functioning correctly in a copy machie is 0.98. If the machine…
A:
Q: e blood test used to confirm this diagnosis gives positive results for 94% of people with the…
A:
Q: Phenylketonuria is inborn disease with the prevalence 0.4 per 1000 newborns. The parameters of…
A: Sensitivity of a screening test can be define as the percentage of cases in which the test result is…
Q: The accuracy of detecting covid-19 using a specific PCR device is 90%. Knowing that the percentage…
A: A. The probability that a person who actually positive detected as positive is obtained below: From…
Q: A researcher doing a cola taste test would like to calculate the relationship between people's age…
A: The objective of the question is to identify the appropriate statistical test to determine the…
Q: The mean percent of childhood asthma prevalence in 43 cities is 2.26%. A random sample of 30 of…
A: Given that. X~N( μ , ?) μ=2.26 , ?=1.20 Z-score =( x - μ )/?
Q: Perform a a Pearson’s correlation in SPSS to determine whether the weight of an automobile…
A: Note: Hi there! Thank you for posting the question. As the data corresponding to the variables…
Q: 6. (a) Suppose an at-home test is 99 percent effective at detecting a disease when the person has…
A: 6. Let us define the following events first. D+ : The person has the disease D– :…
Q: A Nielsen survey of teens between the ages of 13 and 17 found that 83% use text messaging and 56%…
A: It is given that T is the event that a randomly selected teen uses text messaging.The probability of…
Q: Explicate a null and alternative hypothesis in words and symbol and tell whether the test is…
A: Solution-: Given: n=200, x¯=62, μ=50 Explicate a null and alternative hypothesis in words and symbol…
Q: The probability that a patient recovers from a certain type of operation is 0.78. What is the…
A:
Q: Assume that hybridization experiments are conducted with peas having the property that for…
A: Solution
Q: The probability that a patient recovers from a certain type of operation is 0.71. What is the…
A: Given, The probability that a patient recovers from a certain type of operation is p= 0.71 The…
Q: Assume that hybridization experiments are conducted with peas having the property that for…
A: (a) Obtain the mean numbers of peas with green pods in the groups of 28. The mean numbers of…
Q: Schnitzler syndrome has an incidence rate of 9%. It is found that 92% of people suffering from…
A: Given problem Given that
Q: The proportion of people in a given community who have Covid-19 infection is 0.005. A test is…
A: Given information: The proportion of people who have COVID infection is 0.005. The probability that…
Q: Suppose that the proportions of blood phenotypes in a particular population are as follows: A АВ…
A: Consider that the phenotypes of two randomly selected individuals are independent of one another The…
Q: Assume that hybridization experiments are conducted with peas having the property that for…
A: (a) Obtain the value of mean for the number of peas with green pods in the group of 14. The…
Q: ive males with an X-linked genetic disorder have one child each. The random variable x is the…
A: A probability distribution is not given.
Q: If a hypothesis test is found to have power = 0.80, which is the probability that the test will…
A: Given that, hypothesis test is found to have power = 0.80
Q: Q3 : The accuracy of detecting covid-19 using a specific PCR device is 90%. Knowing that the…
A: Given Information: The accuracy of detecting Covid -19 = 90% or 0.9 Percentage of population who…
Q: Dr. Meredith Grey makes an average of u = 50 Covid-19 diagnoses every week. The distribution of…
A:
Q: Let be the probability that a coin will fall head in a single 3 The coin is 4' 1 toss in order to…
A: Answer: Using the given data,
Q: Random COVID-19 testing is required for students, faculty, and staff at IUPUI. Assume that 10% of…
A: Let V - people who actually have the virus. P(V) = 0.10 P( +|V' ) = 0.15 P( -|V ) = 0.02
Q: The incidence of a certain disease in the population is estimated to be 0.5%. That is, the…
A:
Q: Bladder Cancer Sweetener Yes No Used 129 245 171 332 Never Used 1. Using the data from the above…
A:
Q: A study showed that the sex ratio of children born to families in a native community of Ontario…
A: A study showed that the sex ratio of children born to families . Given: A news paper report about…
Q: Q3 : The accuracy of detecting covid-19 using a specific PCR device is 90%. Knowing that the…
A: Following information is given: Accuracy of specific PCR device = 0.9 Proportion of population…
Q: The probability of flu symptoms for a person not receiving any treatment is 0.056. In a clinical…
A: We want to find the probability P(x≥55)
Q: The proportion of people in a given community who have Covid-19 infection is 0.005. A test is…
A: Complement of events: The complement of an event A, written as Ac, is defined as the non-occurrence…
Q: The probability of a positive reaction of the patient to a test developed against a disease is 0.4.…
A:
Step by step
Solved in 2 steps with 2 images
- Studies show that some people who are fully vaccinated against COVID-19 will still getsick. Suppose that out of 10,000 people who are fully vaccinated, an average of one personwill get sick. ii. The probability that at leastrperson get sick is 0.2642. What is the value ofr ?6.6.16-T Question Help The probability of flu symptoms for a person not receiving any treatment is 0.029. In a clinical trial of a common drug used to lower cholesterol, 33 of 1011 people treated experienced flu symptoms. Assuming the drug has no effect on the likelihood of flu symptoms, estimate the probability that at least 33 people experience flu symptoms. What do these results suggest about flu symptoms as an adverse reaction to the drug? (a) P(X2 33) = (Round to four decimal places as needed.) Enter your answer in the answer box and then click Check Answer. 1 part remaining Check Answer Clear All 41,109COVID-19 vaccination is important to help stop the COVID-19 pandemic. A survey conducted showed that only 15% of the Dehli community disagree with the COVID-19 vaccination program. Twenty people of the Dehli community were randomly selected.Let Y be the number of people who disagree with the newly COVID-19 vaccination program among the selected Sirdang community. a. state the distribution of Y and give its probability distribution function b. what is the probability that all of them agree with the vaccination program? c. calculate the probability of Y not exceeding its mean.
- If you play roulettes and bet on 'red' the probability that you win is 18/38 = .4737. People often repeat this between several times. We can consider each time we play a 'trial' and consider it a success when we win, so p = 18/38 or (.4737) and q = 20/38 or (.5263). Suppose that Caryl always places the same bet when she plays roulette, $5 on 'red'. Caryl might play just once, or might play several times. She has a profit (having won $5 more times than she lost $5) if she wins more than half of the games she plays. -when you play 401 times, p is the proportion of those 401 games that you win. You'll profit (winning more than you lose) if you win more than half of your bets p > .5000. c) what is the mean or expected value of p? d) what is the standard deviation of p? e) assume that the distribution of p is Normal and find the probability that Caryl will have a profit if she plays 401 times. show your work or calculator input and round your answer to four decimal placesCould you solve the question pleaseAccording to recent reports, currently 39% of the population of NC (adults and children) has been fully vaccinated against Covid. Suppose of random sample of 400 individuals from the population of NC is selected. Let x represent the number in the sample who are fully vaccinated. d. Find the probability that 130 or fewer in the sample have been fully vaccinated. Round to 4 decimal places. Would this result be unusual? Explain.
- In screening for a covid-19, the probability that a healthy person wrongly gets a positive result is 0.04. The probability that a diseased person wrongly gets a negative result is 0.002. The overall rate of the disease in the population being screened is 1%. If my covid-19 test gives a positive result, what is the probability I actually have the disease?A leading GIS company arranged a special summer training programme for students of a reputed University. The scores obtained by a random sample of 10 students are given below. Use α = 0.10 to determine whether there is a significant improvement in knowledge of the students after attending the training programme.Student Score before training Score after training1 25 322 26 3023 28 324 22 345 20 326 30 287 22 258 20 309 21 2510 24 28A certain disease has an incidence rate of 0.2%. The false negative rate is 8%, and the false positive rate is 3%. Calculate the probability that a person who tests positive actually has the disease. 0.0848 Note: The incidence rate is the probability that a random person gets the disease. The false negative rate is the probability of getting a negative result given that the person has the disease. The false positive rate is the probability of getting a positive result given that the person does not have the disease.
- There was a study done to test using a fever of 38 degrees Celsius or higher as an indicator of postoperative collapse of the lung. The results are shown below. Collapsed Lung Healthy Lung High Fever 72 37 109 Normal Fever 82 79 161 154 116 270 a) Find the sensitivity of the test, i.e. find the probability of a high fever given the lung has collapsed. b) Find the probability of a false-negative, i.e. find the probability of no fever given the lung has collapsed. c) Find the specificity of the test, i.e. find the probability of no fever given the lung is normal. Find the predictive value of the test, i.e. find the probability that the lung has collapsed and the patient has a high fever. d) e) Find the probability that you choose 3 patients that have a high fever and they all have a collapsed lung. f) With this information, is a high fever a good indication of a patient having a collapsed lung?The probability that the weather will be sunny tomorrow is 0.73. What is the probabilitv that the weather will NoT be sunny tomorrow?Not sure on this question.