Disco Fever is randomly found in one half of one percent of the general population. Testing a swatch of clothing for the presence of polyester is 99% effective in detecting the presence of this disease. The test also yields a false positive in 4% of the cases where the disease is not present. What is the probability that the disease is absent if the test result is negative?

Q: In a study of intraobserver variability in assessing cervical smears, a number of slides were…

A:

Q: .What type of error did you make

A: Type 1 error is known to be a false positives. Type 2 error is known to be a false negatives.

Q: In a commissioned research, the inter-collegiate swim meets management found out that an estimated…

A: GivenThe percentage of swimmers competing use performance enhancing drugs = 3% The accuracy of the…

Q: Given that a random person just tested positive, determine the probability of having this illness.

A: Here use tree diagram

Q: diagnostic test for disease X correctly identifies the disease 97% of the time. False positives…

A: event A: suffer from dieseaseB: test positiveP(B|A) = 0.97P(B|A') = 0.07P(A) = 0.0423P(A')  = 1 -…

Q: When interpreting a hypothesis test, report the P-value and describe how much evidence it provides…

A: 1) When interpreting a hypothesis test, report the P-value and :- Correct option (B) Describe how…

Q: A recent study of cardiovascular risk factors reports that 30% of adults meet the criteria for…

A: Given data P = 30% = 0.30n= 15Px = 0 = ?

Q: Dr. x was interested in studying the hand-washing habits of York KINE students, so they sampled 100…

A: Given that  Sample size n =100 Population mean μ =125 SEM=3

Q: A certain virus infects 5% of the population . A test used to detect the virus in  a person is…

A: Given that: A certain virus infects 5% of the population. Let “A” be the event infected by the virus…

Q: Suppose we design a test with 97% specificity and 90% sensitivity on a population of 10,000 with a…

A: 3.

Q: A certain genetic abnormality occurs in roughly 4% of the population. A bloodtest will detect the…

A: The objective of this question is to find the probability that a person has a genetic abnormality…

Q: The probability that a person has a negative side effect from a medication is .08. Suppose you treat…

A: Given, The probability that a person has a negative side effect from a medication is .08 (p) = 0.08…

Q: test to determine whether a certain antibody is present is 99.8​% effective. This means that the…

A: Given that test to determine whether a certain antibody is present is 99.8​% effective

Q: When a production line is properly adjusted, it is found that 4% of the mechanical components…

A: Null Hypothesis (H0): The current setting is correct, and the defect rate is 4%. This means p =…

Q: An actuary studied the likelihood that different types of drivers have at least one collision during…

A: To find: The probability that a driver with at least one collision in the past year is a Teen…

Q: medical test is conducted to determine whether someone has a disease. Suppose that 8% of population…

A: Using Baye's theorem this question can be answered.

Q: Bricks manufactured in a kiln are weighed every day to check them against the design weight. The…

A: Let us denote X=the number of bricks weighing less than the design weight n=sample size= 12…

Q: A certain disease affects 1% of the population. A diagnostic test for the disease is 99% accurate…

A: Introduction Bayes' theorem is a mathematical formula used in statistics to calculate the…

Q: The new cold medication was tested by giving 100 people the drug and 100 people a placebo. A control…

A: Given data: The numbers of persons who were given a placebo are p=100. The numbers of persons who…

Q: The overnight shipping business has skyrocketed in the last ten years. The single greatest predictor…

A: From table Total = 700Medium = 200Not medium = 700 - 200 = 500

Q: f jellybeans are not associated with acne and you adopt an alpha of 5%: What is the probability of…

A: Given that  If jellybeans are not associated with acne and you adopt an alpha of 5% Level of…

Q: A test to determine whether a certain antibody is present is 99.3% effective. This means that the…

A: In theoretical distributions, the binomial distribution is one of the discrete probability…

Q: The incidence of a certain disease in the population is estimated to be 0.5%. That is, the…

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: A female student flips a coin and rolls a die. Assuming statistical independence, what is the…

A: There are 2 possible outcomes when a coin is tossed. Head and Tail. Let us denote H=Head and T=tail…

Q: If 0.5% of the population currently has the virus, what is the probability that a person has the…

A: Let us define some events A : a person has the virus. B : a person does not have virus. E : test…

Q: probability

A: Consider the following events, According to the given problem,

Q: A study published in 2012 concluded that 33 percent of the patients on Prednisone, a medication used…

A: Given that  p = 33% = 0.33 , n = 90

Q: In a recent survey, 70% of management executives thought that it should be  mandatory for business…

A: Solution: Let X be the number of students has not mandatory for business  to take a quantitative…

Q: Alex makes mistakes in a with an average of 1.2 mistakes per class. In a given class, what is the…

A: Given that  Average =λ=1.2 Here we use poisson probability distribution.  P(X=x) =e-λ*λx/x!       X=…

Q: Suppose a lung cancer test is 85% sensitive and 93% specific. That is, the test will produce 85%…

A:

Q: If you roll a 10 sided die until you get a 1, what would be the expected value and variance of the…

A: roll a 10 sided die until you get 1.  roll 10 sided die : equally likely outcomes :…