According to a 2013 study by the Pew Research Center, 15% of adults in the United Statesdo not use the Internet (Pew research Center website, December, 15, 2014). Suppose that10 adults in the United States are selected randomly.a. Is the selection of the 10 adults a binomial experiment? Explain.b. what is the probability that none of the adults use the Internet?c. what is the probability that 3 of the adults use the Internet?

Q: According to a market research firm, 52% of all residential telephone numbers in Los Angeles are…

A: Normal Approximation to Binomial :  The normal distribution can be used as an approximation to the…

Q: If the firm stated that 30% would buy if contacted at home. What is the probability of the sales…

A:

Q: Among the 20 solar collectors on display at a trade show, 16 are flat-plate collectors and the…

A: Solution: a. Let X be the number of solar collectors will be flat-plate collectors. From the given…

Q: A maker of yardsticks has an ink problem that causes the markings to smear on 4% of the yardsticks.…

A: Given information:It is given that N=2,000; n=100; p=0.04 (=4%).The sample proportion is…

Q: what is the probability that at least 1 defective card is in the sample?

A: Let , X has hypergeometric distribution with parameter N=120 , M=15 and n=15 The probability mass…

Q: In one study of calls to 911 in Los Angeles, it was found that 85% of the calls were not…

A: Solution: From the given information, the proportion of the calls were not emergencies is p=0.85 and…

Q: What is the probability of randomly selecting a 3-children family with two girls?

A: We will first list all possible outcomes in the sample space, then we will use following definition…

Q: In a Gallop Poll, 35% of 30 - 49 states that they believe in ghosts. Find the probability that out…

A: (a) The probability that college students do not believe in ghosts is, P(do not believe in ghosts)…

Q: What is the probability of selecting a female respondent, given that the preferred supermarket is…

A: From the table, the number of respondents who are female and preferred Pick n Pay is 60. The number…

Q: In a work place that has 50 members, 30% are fluent in two or more languages.  Three people are…

A: (a)   Determine whether the given study is binomial experiment or not.   The given study is binomial…

Q: A sample of automobile dealerships found that 19 % of automobiles sold are silver. If two cars are…

A: Given Information: 0.19% of the automobiles sold are silver. Two cars are selected randomly.

Q: About 8% of males are colorblind. A researcher needs three colorblind men for an experiment and…

A:

Q: According to a 2013 study by the Pew Research Center, 15% of adults in the United Statesdo not use…

A: Solution: a. The conditions for the binomial distribution are Trials are independent. Probability…

Q: In a particular survey of internet users, 3713 respondents say that they use social networking sites…

A: We want to find the probability

Q: A study is conducted to assess the impact of caffeine consumption, smoking, alcohol consumption, and…

A: Obtain the probability that exactly half of them consume caffeine and smoke. The probability that…

Q: A drug den uses a traveler to deliver drugs without being apprehended by the customs. The traveler…

A:

Q: What is the probability of selecting a red marble, returning it to the bag, and then selecting a…

A: As per our guidelines we can answer only 3 subpart questions. Please repost the question again.

Q: When one is randomly sampling four items from a population, what is the probability that all four…

A: (a). Compute the probability that all four elements will come from the top quartile of the…

Q: If 25 percent of students at a particular school use mechanical pencils, what is the probability of…

A:

Q: The National Coffee Association reports that among individuals in the 45 to 55 age, 70% drink…

A:

Q: According to the Cable and Telecomm. Association for Marketing, 30% of cable television subscribers…

A: Given : n = 15 p = 0.30 Let X be the number of cable television subscribers.

Q: Based on a study by Dr. P. Sorita Sona at Indiana University, about 35% of the population has blue…

A: Let the random variable X denote the no. of individuals has blue eyes and it follows binomial…

Q: What is the probability of obtaining 413 or more 16s in 15,000 spins of a European wheel if it is…

A: Here use standard normal distribution table for probability from z score  Here sample is too large…

Q: Suppose the proportion of elementary students in Texas that are enrolled in fully remote learning…

A: Given that p = 0.20, n = 100, p(x<=10) = ?

Q: It is known that only 20% of college football players are considered as strong candidates for the…

A:

Q: According to a study by the Pew Research Center, 15% of adults in the United States do not use the…

A: Given 15% of adults in the united states  do not use the interneta) Here, the  number of adults…

Q: (a) What is the probability that a randomly selected board cut by the machine has a length greater…

A:

Q: Wi-Fi Based on a poll conducted through the e-edition of  USA Today , 67% of Internet users are more…

A: In this context, the probability that the internet users are more careful about the personal…

Q: According to a government statistical​ organization, the unemployment rate for workers aged 22 to 25…

A: Given data: p = 5.7% Sample size (n) = 90 To find: a. What is the probability that 6 or fewer will…

Q: The Delaware tourism board selected a simple random sample of 50 full-service restaurants located…

A: Given information: The population mean and population standard deviation are 99.2 and 20.5,…

Q: What is the probability a randomly selected person is having brown eyes, given that he is a male Eye…

A:

Q: It has been estimated that 43% of business graduates believe that a course in business ethics is…

A: Given : sample size n = 80 p = 0.43

Q: The Association reports that among individuals in the 48 to 55 age, 45% drink coffee. If 200 people…

A: let X: number of coffee drinkers…

Q: It is known that only 25% of college football players are considered as strong candidates for the…

A: Given p=25%=0.25  n=15 X~Binomial(n=15,p=0.25)

Q: Based on a​ poll, 67​% of Internet users are more careful about personal information when using a…

A: Consider a random variable X which represent the number internet users who are more careful about…

Q: A college recently reported that 52.6% of its student body had concerns about the increasing cost of…

A: Given that the percentage of student body had concerns about he increasing cost of textbooks is…

Q: (a) What is the probability that in a randomlý sampled individual, gene 1 is dominant? (b) What is…

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

Q: According to a 2013 study by the Pew Research Center, 15% of adults in the United States do not use…

A:

Q: Given that 58% of all gold dealers believe next year will be a good one to speculate in South…

A:

Q: What is the probability of getting a sample in which more than 70% think that airplanes would be…

A: Let p be the true proportion of adults who think airplanes would be safer places if airlines…

Q: In a survey of 500 college graduates, 67% reported that they entered a profession closely related to…

A: Given that  In survey of 500 college graduates 67% reported a college major.  P = 0.67 (1-P) =…

Q: large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

A: Given large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

Q: According to the American Automobile Association (AAA), 5.3% of Americans plan to travel by car over…

A:

Q: It is known that only 20% of college football players are considered as strong candidates for the…

A:

Q: According to recent estimates by the Insurance Corporation of British Columbia (ICBC), 20 percent…

A:

Q: A survey reports that 53% of college students use Google as their search engine.  If 100 students of…

A:

Q: A study is conducted to assess the impact of caffeine consumption, smoking, alcohol consumption, and…

A:

Q: What is the probability that a randomly chosen survey respondent is a male or chose "recreation" as…

A: There are totally 200 people are considered in which 96 are males, 62 are recreations, and 23 are…

Q: In a company that makes sports bikes, 90% of the bikes pass final inspection and 10% fail and need…

A:

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.