2- 200 sample were enrolled in a study to evaluate the accuracy of a new test Test Positive Test Negative Disease Positive 80 20 Calculate the Sensitivity and specificity Is this a screening test or a confirmatory test? Why? Disease Negative 5 95

2- 200 sample were enrolled in a study to evaluate the accuracy of a new test Test Positive Test Negative Disease Positive 80 20 Calculate the Sensitivity and specificity Is this a screening test or a confirmatory test? Why? Disease Negative 5 95

College Algebra (MindTap Course List)

12th Edition

ISBN:9781305652231

Author:R. David Gustafson, Jeff Hughes

Publisher:R. David Gustafson, Jeff Hughes

Chapter8: Sequences, Series, And Probability

Section8.7: Probability

Problem 7E: List the sample space of each experiment. Selecting a letter of the alphabet

See similar textbooks

Related questions

Q: An industrial plant claims to discharge no more than 1000 gallons of wastewater per hour, on the…

A: From the provided information,

Q: Researchers conducted a study to determine whether magnets are effective in treating back pain. The…

A: TreatmentShamn11110.540.38s0.871.25Do not assume that the population standard deviations are equal.

Q: A randomly selected car owner in New York might be having a Japanese made car, where the probability…

A: Note:Hi there! Thank you for posting the question. To avoid the plagiarism issues, we have used the…

Q: or each predictor variable, state the P-value and determine whether the predictor variable is…

A: From the question we have this regression outputHere R square is 70.488 That means around 70.49% of…

Q: Can you please explain the difference between stratified sampling and cluster sampling? If possible,…

A: The sampling involves selecting a subset of individuals from a larger pop. to represent the whole…

Q: In Talia's math class, the students have been challenged to ask a statistical question and then find…

A: The given data is as follows: Years since 1950Life Expectancy at…

Q: Frequency 20 15 12 5 60 Histogram of Sales 120 180 Sales 240 300

A: The provided histogram represents the frequency distribution of sales. The sales value is given on…

Q: A college administrator wants to see if students in different majors tend to have differing amounts…

A: The question is about ANOVA.Given :No. of students in Sociology ( n1 ) = 15No. of students in…

Q: A box contains 3 yellow pencils and 7 green pencils. Two pencils are chosen at random from the box…

A: The objective of this question is to find the probability that two pencils chosen at random from a…

Q: 1. Analyze the data as a two way factorial design. 7. Johnson and Leone (Statistics and Experimental…

A: Given the data asTemperature (oC)Copper Content ( %…

Q: For many years businesses have struggled with the rising cost of health care. But recently, the…

A: The sample size, i.e., the sampled number of employers, n=600.The sample proportion of employers…

Q: A statistical program is recommended. Electromagnetic technologies offer effective nondestructive…

A: Note: “Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: Is there a relationship between (X) rate of poverty (measured as a percent of population below…

A: The objective of this question is to determine whether the correlation between the rate of poverty…

Q: Use the following set of observed frequencies to test the independence of the two variables.…

A: From the provided information,CDEA12108B202426Level of significance

Q: Assume that a sample is used to estimate a population proportion p. Find the 80% confidence interval…

A: It is required to obtain the 80% confidence interval for the population proportion of successes,…

Q: 2 Find the critical values x and x² for the given level of XL confidence and sample size. Use three…

A: The sample sizes and confidence levels are given.The objective is to determine the critical values…

Q: Two electric generators are connected in series to supply electricity for a company during network…

A: The 2 electric generators are connected in series to supply electricity for the company during…

Q: I'm confused what's the answer to the question?

A: Given that: Population mean

Q: At Western University the historical mean of scholarship examination scores for freshman…

A: The given data is as follows:Population mean, Population standard deviation, Sample size, Sample…

Q: The lengths of lumber a machine cuts are normally distributed with a mean of 100 inches and a…

Q: 4. Let Z be the standard normal random variable. Find (a) P(Z .3) (c) P(Z <.3)

A: 4) Given Z is a standard normal random variable.We need to find,(a) P(Z < -.3)(b) P(Z > .3)(c)…

Q: 3. Technology is dramatically changing the way we communicate. In 2014, a survey of 880 U.S.…

A: Sample size (n) = 880Let X be a household that uses e-mailX=149Level of significance = 0.05Note:…

Q: Question 5 - Binomial The proportion of overweight bags that are checked on airlines is 6.3%. If you…

A: From the information, given thatLet X denotes the overweight bags that are checked on airlines which…

Q: Q1 Let (X₁, X₂) be jointly continuous random vector with the following information: you are given…

A: Given that be jointly continuous random vector.The conditional density function of given is given…

Q: You and the enemy each have 200 drops of blood, you attack the enemy and drop a random integer…

A: You and the enemy both have 200 drops of blood.You initiate the attack by randomly dropping an…

Q: To test Ho: μ = 107 versus H₁: μ#107 a simple random sample of size n = 35 is obtained. Complete…

A: c)Suppose μ is the population mean.

Q: Find the z-score that best satisfies the condition 10% of the total area is to the left of z. Z=…

A: According to the question, To find the z-score where 10% of the total area under the normal…

Q: ou are trying to determine if a certain dice is fair (has a uniform distribution). You roll the dice…

A: A dice is rolled 42 times.The outcomes obtained are shown below:Outcome 123456Expected…

Q: f a students rank in a class of 200 is 12, find the students percentile rank

A: The question is about measures.Given :Total no. of students in a class ( n ) = 200Rank of a student…

Q: Suppose X1,...,Xn are iid Exponential(θ = 2), such that E(Xi) = 2. Further assume that n is large…

A: Suppose X1 ,...,Xn are iid Exponential( = 2), such that E(Xi) = 2.From the central limit theorem,

Q: Wins Attendance (In Millions) 65 2.06 91 2.51 66 1.73 89 3.05 75 3.06 88 2.19 91 2.06…

A: Let X denote the Wins (independent variable) and Y denote Attendance in millions ( dependent…

Q: Consider the following hypotheses. Ho: p≤0.22 H₁: p>0.22 Given that p=0.3, n = 130, and a=0.10,…

A: The question is about hypothesis testing.Given :Hypotheses :Proportion of the sample ( ) = 0.3No.…

Q: 1) What is the null hypothesis in this study? What is the research hypothesis? 2) What are the…

A: Null Hypothesis (H0): There is no association between age and support for the smoking ban in public…

Q: 1. Prove that e²+1 = (1 - ₁)²e²+ n²

A: It is to be proven that

Q: Trucks in a delivery fleet travel a mean of 8080 miles per day with a standard deviation of 3737…

A: Suppose the random variable x defines the travel distance of a truck in a delivery fleet.

Q: A SCUBA instructor wants to record the collective depths each of his students' dives during their…

A: The objective of the question is to identify the null and alternative hypotheses for a statistical…

Q: 4. Construct the 95% confidence interval for ₁ - 2, the average score difference between group A and…

A: Since you have posted a question with multiple subparts, we will provide a solution to the first…

Q: At your local carnival, there is a game where 40 rubber duckies are floating in a kiddie tub, and…

A: The objective of this question is to determine the minimum and maximum amounts of candy that could…

Q: Q3. Is the above hypothesis true? Explain by providing the P value Yes if the value is greater than…

A: This is problem based on one way- ANOVA .Which use to compares the means of three or more…

Q: Determine the critical t-scores for each of the conditions below. a) one-tail test, a = 0.05, and n…

A: We have given the type of test,Significance level: And sample size:

Q: Company indicate that at most 45% of employees commute to work using public transportation. You…

A: Sample size employees.Out of which employees take public transport.At most 45% of employees take…

Q: Compute the (sample) variance and standard deviation of the data sample. (Round your answers to two…

A: Answer Given,-1,7,7,3,14.Formulas:

Q: Test (1031) and the Rotating Bomb Uxidation Test (RBOT) are two different procedures for evaluating…

A: The given data is as follows:TOST; null" style="cursor: pointer;" data-mce-style="cursor:…

Q: Consider the hypotheses shown below. Given that x = 54, o = 12, n-34, a=0.10, complete parts a and…

A: Mean ()=54standard deviation ()=12sample size(n)=34significance level ()=0.10The null and…

Q: In American roulette, the wheel contains the numbers 11 through 3636, alternating between black and…

A: The objective of the question is to calculate the expected winnings of a player who bets on red in a…

Q: A population consists of the following five values: 8, 8, 10, 10, and 14. Required: a. List all…

A: The mean is the average of a data set, found by adding all numbers together and then dividing the…

Q: In a family of 4 Children, the probability of a male birth is 0.5. Find the probability that the…

A: Sample of size(n)=4p=Probability of a male birth=0.5q=1-pq=1-0.5=0.5

Q: Identify the outlier(s) in the scatterplot shown below and write as an ordered pair in the form…

A: A scatterplot shows relationship between 2 variables.

Q: A manufacturer must test that his bolts are 4.00cm long when they come off the assembly line. He…

A: Suppose is the population mean length of the bolts.

Q: ollowing July 31 because that was the age cutoff date for nonschool baseball leagues. The table…

A: The question is about categorical data analysis.Given :To find :Test the give claim.

Question

2- 200 sample were enrolled in a study to evaluate the accuracy of a new test.
Test
Positive
Test
Negative
Disease
Positive
80
20
Calculate the Sensitivity and specificity
Is this a screening test or a confirmatory test? Why
Disease
Negative
5
95

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

SEE SOLUTION Check out a sample Q&A here

Step 1: Given information

VIEW

Step 2: Calculate sensitivity

VIEW

Step 3: Calculate specificity

VIEW

Step 4: Determine screening or confirmation test

VIEW

Solution

VIEW

Step by step

Solved in 5 steps with 2 images

SEE SOLUTION Check out a sample Q&A here