Early in 2010, Consumer Reports published the results of an extensive investigation of broiled chickens purchased from food stores in 23 states. Tests for bacteria in the meat showed that 62% of the chickens were contaminated with campylobacter, 14% with salmonella, and 9% with both.  (a) What is the probability that a tested chicken was not contaminated with either kind of bacteria? (b) Are contamination with the two kind of bacteria disjoint events? Explain

Q: Based on the most recent census, it is known that 32% of the adult population of North Nitch are…

A: We have given thatp = 0.32 n = 1000q = 1 - p = 1 - 0.32 = 0.68

Q: A survey of California community college statistics students were asked their student status and…

A: The table shows the student status and type of class.

Q: Despite frequent announcements by pilots and flight attendants, many passengers do not keep their…

A: Here, probability of success is probability that passengers fail to fasten their seat belts equal to…

Q: Researchers G. Evans and E. Kantrowitz explored the health consequences for exposure to many…

A: Solution:  Let X be the random variable that preschool children living in poverty have been exposed…

Q: Love Stinks? J. Fetto, in the article “Love Stinks” (American Demographics, Vol. 25, No. 1, pp.…

A: Hey there! Thank you for posting the question. Since your question has more than 3 parts, we are…

Q: The probability of a randomly selected adult in one country being infected with a certain virus is…

A:

Q: The probability that a person with certain symptoms has hepatitis is 0.7. The blood test used to…

A: Given that P  ( H ) = 0.7, P (+ve/H ) = 0.95 , P ( + ve / H' ) = 0.05 Find P( H/+ve ) = ?

Q: When I was an undergraduate, I helped my father conduct some Child Psychology research about…

A: Given: n = 158 x = number of students answered Turquoise = 38

Q: Enterococci are bacteria that cause blood infections in hospitalized patients. One antibiotic used…

A: given data  P(have resistance to vancomycin) = 0.03resistance to vancomycin means not succesfully…

Q: Nextel Directory Assistance has a tendency to give Wrong Answers 36% of the time, If you Request…

A: Let a random experiment be performed repeatedly, each repetition is called a trial. let the…

Q: According to your textbook, statistical power is the probability of not making which of the…

A: Type1 error Probability of rejection of null hypothesis when it is true. It is represented by alpha.…

Q: & What is the probability of seeing positive change? What is the probability of seeing positive…

A:

Q: information when using a public Wi-Fi hotspot? How is the result affected by subjects volunteered to…

A: Given that  Number of trials n=4 Success of probability p=0.61 ,q=1-p=0.39 X~Bin(n,p)…

Q: Cystic fibrosis. Cystic fibrosis (CF) is a hereditary lung disorder that often results in death. It…

A: Given information: Denote the event “a randomly selected person is a carrier” as C. The probability…

Q: Week 3 Please provide solutions and steps in an excel spreadsheet   A study is conducted to…

A:

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: Web Browser Market Share. Market-share-analysis company Net Applications monitors and reports on…

A: Hello! As you have posted 4 sub parts,  we are answering the first 3 sub-parts.  In case you require…

Q: A survey of top executives revealed that 29% of them regularly read Time magazine, 22% read…

A: The answer is attached below,

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: As reported in the New York Times on August 14, 2012,“University of Michigan researchers analyzed…

A: Geometric distribution: A random variable x is said to follow a geometric distribution, if the…

Q: On-Time Airlines. The Office of Aviation Enforcement and Proceedings (OAEP) publishes important…

A: a. The probability of all flights arriving at U.S. airports is 0.76 and the number of arrivals in…

Q: Based on a​ poll, 69​% of Internet users are more careful about personal information when using a…

A: Given Data Probability of success,p = 0.69 Probability of failure,q=(1- 0.69 )= 0.31…

Q: In a recent poll, the Gallup Organization found that 45% of adult Americans believe that the overall…

A: From the provided information, 45% of adult Americans believe that the overall state of moral values…

Q: A recent study of cardiovascular risk factors reported that 30% of adults met criteria for…

A: Solution: It is given that a recent study of cardiovascular risk factors reported that 30% of adults…

Q: The first product of a test run was inspected and found to be non-defective. What is the probability…

A: Let us define some events A : the machine is correctly tuned. B : the machine is not correctly…

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

A: Here, n = 15 and p = 0.30.

Q: Suppose a study of driving under influence and driving without seatbelt produced the following data:…

A: Given data is   Driving under influence in year 2021 Driving not under influence in year 2021…

Q: According to Internal Revenue Service records, 1.55% of all household tax returns are audited.…

A: event                  A : tax returns are audited         B : own a dog P(A)=0.0155 P(B)=0.41…

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: According to Chemical Engineering Progress (November 1990), approximately 30% of all pipework…

A:

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: According to Harper's Index, 50% of all federal inmates are serving time for drug dealing. A random…

A: Let X be the random variable from binomial distribution with probability (p) = 50% = 0.50 and sample…

Q: Enterococci are bacteria that cause blood infections in hospitalized patients. One antibiotic used…

A: Given  n=sample size=18, q be the probability of successful treatment q=3%

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 study of 3000 people compared the rates of liver cancer between 2000 people who drank one or more…

A: Here we want to test the relationship between coffee drinking and liver cancer.  For finding the…

Q: A telemarketing firm conducts surveys with a 40% historical response rate. What is the probability…

A:

Q: Suppose that asthma affects 1 in 20 children in a population. We decide to redo the survey and now…

A:

Q: A quality control officer was checking the quality of a product on the manufacturing line. For an…

A: Hello! As you have posted 3 different questions, we are answering the first question. In case you…

Q: Suppose that asthma affects 1 in 20 children in a population. You take an SRS of 50 children from…

A: It is given that asthma effects 1 in 20 children in a population. Let the random variable X denotes…