Using Excel) Suppose that a polygraph can detect 58% of lies, but incorrectly identifies 24% of true statements as lies. A company gives everyone a polygraph test, asking "Have you ever stolen anything from your place of work?" Naturally, all the applicants answer "No," but the company

Using Excel) Suppose that a polygraph can detect 58% of lies, but incorrectly identifies 24% of true statements as lies. A company gives everyone a polygraph test, asking "Have you ever stolen anything from your place of work?" Naturally, all the applicants answer "No," but the company

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

See similar textbooks

Related questions

Q: A study considered the question, "Are you a registered voter?" Accuracy of response was confirmed by…

A: Interval means the boundary to the values. The minimum boundary is the lower limit and the maximum…

Q: A company is considering using a polygraph to screen the “honesty” of their applicants. When asked,…

A: Suppose that D is an event that an applicant is dishonest and PO is another event that test is…

Q: 8) A researcher wanted to determine whether there is any difference in the popularity of football…

A: a) A null hypothesis is a statement of no difference and the alternative hypothesis is simply the…

Q: 3) The one-time fling! Have you ever purchased an article of clothing worn the item once to a party,…

A: n=7p=0.10q=1-p =1-0.10=0.90

Q: Oregonians really, really want a baseball team research group contacted a random sample of 5000…

A: 48% is a sample statistic

Q: 2- A radio station conducts a poll about gun control. It invites listeners to call one phone number…

Q: A security expert claims that at least 13% of all homeowners have a home security alarm. State Ho…

A: GivenA security expert claims that atleast 13% of all homeowners have homesecurity alarm

Q: A statistics instructor believes fewer than 20% of Clayton State University students attended the…

A: The random variable is attending the midnight showing.We have to write the null and alternative…

Q: ith short-game shots, 99 need the most help with approach and swing, 42 need the most help with…

A: Given: H0: p1=0.65, p2=0.22, p3=0.09, p4=0.04 Ha: At least one proportion is not the same. The…

Q: in a matched design, participants are matched on different characteristics. true or false?

A: Matched pairs: Each condition uses different participants, but they are matched in terms of…

Q: The schools newspaper reported that the proportion of students majoring in business is at least 30%.…

A: From the provided information,The schools newspaper reported that the proportion of students…

Q: 10. The infamous psychologist, Dr. Visegrips, claims that his secret sleep audio program cause…

A: Given : Person A B C D E Pretest 68 69 74 71 65 Postest 70 68 75 72 68

Q: Lie detectors are controversial instruments, barred from use as evidence in many courts.…

A: Given information: Given that a polygraph can detect 66% of lies, but incorrectly identifies 24% of…

Q: A small college has been accused of gender bias in its admissions to graduate programs.a. Out of 500…

A: The objective of the question is to determine if there is gender bias in the college's admissions by…

Q: Gallup conducted a survey of 1,015 randomly selected U.S. adults about "Black Friday" shopping. They…

Q: 5. Make an inference about your population. You must write one or more sentenčėš, even if you have a…

A: Histogram shows data points in a graphical format.

Q: College Degree Recipients A survey of 800 recent degree recipients found that 150 received…

A: The given data is, Category Oi Associate degree 150 bachelor 458 first professional 20…

Q: State the type of error (Type I or II) that has been made for the following claims. A. Claim: More…

A: Type 1 Error: Type 1 error is the incorrect rejection of a true null hypothesis. This is also known…

Q: b) What is your estimate of the percentages of individuals who sleep fewer than 6 hours, 6 to 6.9…

A: The data is given as: Hours of sleep Age group 39 or younger 40 or older Fewer than 6 38 36…

Q: Which bias is possible when people volunteer to participate in your survey? Self-selection…

A: In a self-selection bias people voluntary entered in the survey and affect the result of the study…

Q: Suppose we want to test the claim that the proportion of Californians who prefer single-family home…

A: From the given information, Claim: Suppose we want to test the claim that the proportion of…

Q: Suppose you are selected for a survey, but you are embarrassed to give your true response in front…

A: Introduction: The type of bias is to be identified.

Q: In a survey conducted by a website, employers were asked if they had ever sent an employee home…

A: Sample size, n=2765 Number of successes, x=964

Q: In another Harris poll, adults were asked if they are in favor of abolishing the penny. Among 200…

A: From the given information, Sample size (n) =200 Probability of success…

Q: b. Which group is more likely to have taken a vacation in the last year: college graduates or…

A: Given data: Yes No Total College Graduate 183 67 250 Not a College Graduate 126 124 250…

Q: In a survey conducted by a website, employers were asked if they had ever sent an employee home…

A: Given, The sample proportion is,

Q: In a survey conducted by the Gallup organization September 6-9, 2012, 1,017 adults were were asked…

Q: Was this an experiment or an observational study?

A: Here the individual is men and treatment is whether men diagnosed with cancer are assigned to…

Q: A study considered the question, "Are you a registered voter?" Accuracy of response was confirmed by…

A: Given, n1=91X1=70n2=95X2=73 Therefore, p^1=X1n1=7091=0.7692 and p^2=X2n2=7395=0.7684 The pooled p is…

Q: K In a July 2017 report, a research firm stated that 39% of people from a certain region reported…

A: Approach to solving the question: Detailed explanation: Examples: Key references:

Q: In 1948, an organization surveyed 1100 adults and asked, "Are you a total abstainer from, or do…

A: Here we have , X1 = 429, N1 = 1100 , p1 ^= x1n1 = 0.39 X2 = 363 , N2 = 1100 , p2 ^= x2n2 = 0.33

Q: In a large city, 55% of people pass the drivers' road test. Suppose that every day, 200 people…

A: We have given thatp = 55% = 0.55n = 200 Here we will use binomial distribution because probability…

Q: 3. Suppose a polygraph test is 80% accurate. Five thousand employees at a company are given the test…

A: Continue with the 2x2 contingency table...........

Question

(Using Excel)

Suppose that a polygraph can detect 58% of lies, but incorrectly identifies 24% of true statements as lies. A company gives everyone a polygraph test, asking "Have you ever stolen anything from your place of work?" Naturally, all the applicants answer "No," but the company has evidence to suggest that 10% of the applicants are lying. When the polygraph indicates that the applicant is lying, that person is ineligible for a job.

a) Draw the probability tree for these relationships

b) What is the probability that a random job applicant is a dishonest worker who is cleared by the polygraph?

Video Video

Expert Solution

This question has been solved!

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

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

Step 2

Step 3

Step 4

Trending now

This is a popular solution!

Step by step

Solved in 4 steps

SEE SOLUTION Check out a sample Q&A here

Similar questions

Is E right
1
A golf instructor wants to test the following claim: of all golf students in the United States, 65% need the most help with short game shots, 22% need the most help with approach and swing, 9% need the most help with driver shots, and 4% need the most help with putting. A random sample of golf students finds that 276 need the most help with short-game shots, 99 need the most help with approach and swing, 42 need the most help with driver shots, and 18 need the most help with putting. Test the claim at σ = 0.10.
College Degree Recipients A survey of 800 recent degree recipients found that 158 received associate degrees; 451, bachelor degrees, 21 first-professional degrees; 154, master degrees; and 16, doctorates. Is there sufficient evidence to conclude that at least one of the proportions differs from a report which stated that 23.3% were associate degrees; 51.1%, bachelor degrees; 3%, first professional degrees; 20.6%, master degrees; and 2%, doctorates? Use =α0.10.
A classic story involves four carpooling students who missed a test and gave as an excuse a flat tire. On the makeup test, the instructor asked the students to identify the particular tire that went flat. If they really didn't have a flat tire, would they be able to identify the same tire? A statistician asked 47 other randomly selected students to identify the tire they would select. The results are listed in the accompanying table. Use a 0.05 significance level to test the statistician's claim that the results fit a uniform distribution. What does the result suggest about the likelihood of four students identifying the same tire when they really didn't have a flat? Tire Number Selected Left Front 12 Right Front 8 ... Determine the null and alternative hypotheses. Ho: The tires are selected with the same frequency. H₁: At least one tire has a different frequency than the other tires. Calculate the test statistic, X². x² = (Round to three decimal places as needed.) Left Rear 14 Right…
A study considered the question, “Are you a registered voter?” Accuracy of response was confirmed by a check of city voting records. Two methods of survey were used: a face-to-face interview and a telephone interview. A random sample of 93 people were asked the voter registration question face-to-face. Seventy-nine respondents gave accurate answers. Another random sample of 83 people was asked the same question during a telephone interview. Seventy-four respondents gave accurate answers. Assume that the samples are representative of the general population. Test the claim that there is a difference in the proportion of accurate responses from face-to-face compared with telephone interviews. Use alpha=.05 What is the null hypothesis? What is the alternative hypothesis? What distribution are you using? What test are you running? What is your conclusion?
b) A certain pay television company wishes to estimate the proportion of its customers who would purchase a pay television program guide. To do this, the company manager decides to select a random sample of customers and note the number who would purchase a program guide. Suppose that experience in other areas suggests that about 13% of customers will purchase a program guide. How many customers should the company manager include in his sample if he wishes to estimate the true proportion who will purchase the program guide correct to within 5% (0.05) with a confidence level of 95%?
A De Anza student decided to determine whether the percent of men who participate in sports at De Anza College is higher than the percent of women who participate in sports at De Anza College. Out of 67 women, 12 said they participate in sports. 13 of the 45 men surveyed said they participate in sports. a. ) What are the type I and type II errors? Explain them in the context of this problem.b. ) Describe the sample statistics in words. What is the distribution of the sample statistic? Explain why you used this distribution.Can someone please help me make sense of these questions?
You create three versions of a survey, each with different ways of phrasing the questions (positive, negative, or neutral). You randomly assign participants to one of the three surveys, each of which has 20 items for which participants rate their agreement. After collecting the surveys, you calculate an average agreement score for each participant. If testing hypotheses about question phrasing on agreement, it would be most appropriate to calculate a. 1) O One-way (independent) ANOVA ›2)Repeated measures ANOVA 3) factorial ANOVA Factorial ANOVA
Participants in an experiment are asked to flip a fair coin and report the outcome. If they report H, they receive $10. If they report T, they receive $O. The experimenter observes that 70% of 1000 reports are H. How does this experiment provide evidence against or in favour of lying aversion? Please answer in at most three sentences.