Statistics question DesignLayoutReferencesMailingsReviewViewambriaA- A-A A=,三26AaBbCcDdEeAaBbCcD AABBCCDDE AaBb AaBbCcDdEeAaBbCcDdEeAaBbCcDabe X, x?A- AE = = EEmphasisINormalHeading 1Heading 2TitleSubtitleStrang14. A hair salon did a survey of 354 customers regarding satisfaction with service and type of customer. A walk-In customer is one who hasseen no ads and not been referred. The other customers elther saw a TV ad or were referred to the salon (but not both). The resultsfollow.Assume the sample represents the entire population of customers. Find the probability that a customer isa Not satisfiedb. Not satisfied and a walk-inc Very satisfied, given referredd. Neutral or referrede. Saw add and was referredWalk-InTV AdReferredTotal35Not Satiled1911224080Neutral184199132Satisied32314810728Very Satiiad15235497Total15. According to the American Management Association, most U.S. companies now test at least some employees and job applicants for druguse. The U.S. National Institute on Drug Abuse claims that about 15% of people in the 18-25 age bracket use illegal drugs. Allyn Clark, a21 year-old college graduate, applied for a job at the Acton Paper Company, took a drug test, and was not offered a job. He suspectedthat he might have failed the drug test, even though he does not use drugs. In checking with the company's personnel department, hefound that the drug test has 99% sensitivity, which means that only 1% of drug users incorrectly test negative. Also, the test has 98%specificity, meaning that only 2% of nonusers are incorrectly identified as drug users. Allyn felt relieved by these figures because hebelieved that they reflected a very reliable test that usually provides good results. But is this really true?The accompanying table shows data for Allyn and 1,999 other job applicants. Based on those results:a. Find Plfalse positive); that is, find the probability of randomly selecting one of the subjects who tested positive and gettingsomeone who does not use drugs.Focus14871 wordsEnglish (United States) meInsertDesignLayoutReferencesMailingsReviewView三,三 ,AaBbCcD AaBbCcDdE AaBb Aa BbCcDdEeCambria26A- A- AAaßbCcDdEeAaBbCcDdEeAaBbCcDdEeAasbCeNormalHeading 1Heading 2SubtitleEmphasisStrongColorfulTitleteabe X2x A15. According to the American Managernent Assocdation, most U.S. companies now test at least sorme employees and job applicants for druguse. The U.S. National Institute on Drug Abuse dalms that about 15% of people in the 18-25 age bracket use illegal drugs. Allyn Clark, a21 year-old college graduate, appled for a job at the Acton Paper Company, took a drug test, and was not offered a job. He suspectedthat he might have failed the drug test, even though he does not use drugs. In checking with the company's personnel department, hefound that the drug test has 99% sensitivity, which means that only 1% of drug users incorrectly test negative. Also, the test has 98%specificity, meaning that only 2% of nonusers are Incorrectly identified as drug users. Allyn felt releved by these figures because hebeleved that they reflected a very rellable test that usually provides good results. But is this really true?The accompanying table shows data for Allyn and 1,999 other Job applicants. Based on those results:a Find Pfalse positive); that is, find the probability of randomly selecting one of the subjects who tested positive and gettingsomeone who does not use drugs.b. Find Pifalse negative); that is, find the probability of randomly selecting someone who tested negative and getting someone whodoes use drugs.c Are the probabilities of these wrong results low enough so that job applicants and the Acton Paper Company need not beconcerned? Explain your answers.Drug UserNon-UserTotal34Positive Test Result 297Negative Test Result 3Total1666FocusPage 3 of 4871 wordsEnglish (United States)MacBook Air

14. A hair salon did a survey of 354 customers regarding satisfaction with service and type of customer. A walk-In customer B one seen no ads and not been referred. The other customers elther saw a TV ad or were referred to the salon (but not both). The re follow. Assume the sample represents the entire population of customers. Find the probability that a customer is a Not satisfied b. Not satisfied and a walk-in c Very satisfied, given referred d. Neutral or referred e. Saw add and was referred Walk-In TV Ad Referred Total 1 Not Satied 22 Ntral 43 Sutied Very Satued 252 354

14. A hair salon did a survey of 354 customers regarding satisfaction with service and type of customer. A walk-In customer B one seen no ads and not been referred. The other customers elther saw a TV ad or were referred to the salon (but not both). The re follow. Assume the sample represents the entire population of customers. Find the probability that a customer is a Not satisfied b. Not satisfied and a walk-in c Very satisfied, given referred d. Neutral or referred e. Saw add and was referred Walk-In TV Ad Referred Total 1 Not Satied 22 Ntral 43 Sutied Very Satued 252 354

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

Photo attached with the question
whats the volume
Unable to understand the hand writing.
paameters
C(11,8)=
Section 5 ection, Pra
Home Games Frequency 4 13 5 84 102 7 47 8 9 2