A certain disease has an incidence rate of 0.8%. If the false negative rate is 6% and the false positive rate is 4%, compute the probability that a person who tests positive actually has the disease. Give your answer accurate to at least 3 decimal places

Q: The mean percent of childhood asthma prevalence in 43 cities is 2.34%. A random sample of 31 of…

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Q: The probability of success is 0.30. If the number of trials is 12 and the number of successes is 6,…

A: Solution:

Q: A baseball player has a batting average of 0.313. what is the players expected number of hits in her…

A: Solution: Given data p = 0.313 n =19 To find : Expected number of hits in her next 19 times at bat?…

Q: If the probability of making a Type 2 error is 0.56, what is the power?  Round your answer to two…

A: Given that  The probability of type 2 error is 0.56 Type 2 error is denoted by β

Q: produces false positives with a probability of 0.02. If a person tests positive for the disease,…

A: Here use tree diagram and Bayes rule  D = PERSON HAVE DISEASE  T = TEST RESULT POSITIVE  p(D) =…

Q: According to a recent survey, 71% of teens ages 12-17 in a certain country used social networks in…

A: Sample size n=140Population proportion p=0.71

Q: 5. The average length of crocodiles in a swamp is 10.5 feet. If the lengths are normally distributed…

A: We have given that,  The length are normally distributed with average or mean(mu) = 10.5 and…

Q: Find the standard deviation for the population data set. You must clearly show your work with…

A: Given data 2, 5, 9, 11, 13 Mean,  x = ∑i xin= 2+5+9+11+135 = 8 xi (xi-x¯) (xi-x¯)2 2 -6 36 5…

Q: Compute the test statistic. Round to two decimal places.

A: Sample size, n=2027 No. of adults who drank diet soda, x=485

Q: Cody took his first physics exam and scored an 80. The population mean for this exam is 70, and the…

A: Solution: It is given that, Population mean, 70 Standard deviation, 5 Given that Cody took his first…

Q: that follow a Weibull distribution with m = 2 and a = 10 (with measurem of hours). e probability…

A: The random variable  represents the life lengthof resistors. The measurements in thousands of hours.…

Q: The weights of steers in a herd are distributed normally. The standard deviation is 300⁢lbs and the…

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Q: The length of time it takes college students to find a parking spot in the library parking lot…

A:

Q: What is the probability of randomly selecting a Female or a New product? New product Old product…

A: We have given that the data into a cross tabulation form. Total number of persons = 73

Q: When doing blood testing for a viral infection, the procedure can be made more efficient and less…

A: Given information- We have given the probability of an individual blood sample testing positive for…

Q: expected or average value of a roll of this die?

A:

Q: Trucks in a delivery fleet travel a mean of 130 miles per day with a standard deviation of 39 miles…

A: The data on per day mileage of a delivery truck is normally distributed. Population mean, Population…

Q: If a probability or 2 place decimal like area is found to be 077 or - 1.09 0.4377, what is the z…

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Q: there is 70% chance they should hit atleast how many pitches this season?

A: Given that, there is 70% chance they should hit.

Q: Last year, 58% of butterflies in NC were monarchs.  We hypothesize that the proportion changed this…

A: From the provided information,Last year, 58% of butterflies in NC were monarchs.

Q: If you change the a level from .05 to .01, does the probability of making a Type I error increase,…

A: According to the given information in this questionWe need to identify the correct option

Q: c. What is the probability that a randomly selected tax return refund will be between $3200 and…

A: given dataμ=3142σ=926normal distribution

Q: Round every calculation to 2 decimal points unless the specific question asks for something…

A: Givensample size(n)=36Mean(μ)=99standard deviation(σ)=20

Q: The test for a certain disease is 86% accurate.  A hospital tests a sample of 5000 patients for this…

A: Accuracy of the test is 86% Inaccuracy of the test = 14% N = Total number of patients = 5000…

Q: Trucks in a delivery fleet travel a mean of 100 miles per day with a standard deviation of 38 miles…

A:

Q: anthropologist wishes to calculate the average height of men of a certain race. Assuming the…

A: Given that  Population Standard Deviation = 2.5  Sample = 100

Q: A sample of 38 people are taken who who owns a red pair of shows. The std is 23 with an unlnown mean…

A: To determine the probability of making a type II error and the power, we need to know the level of…

Q: Trucks in a delivery fleet travel a mean of 80 miles per day with a standard deviation of 35 miles…

A: We denote the mean by the symbol  and the standard deviation by the symbol . It is giventhat  and…

Q: For a certain group of individuals, the average heart rate is 74 beats per minute. Assume the…

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Q: Assume that adults have IQ scores that are normally distributed with a mean of μ = 100 and a…

A: From the provided information, Mean (µ) = 100 Standard deviation (σ) = 15