bank is interested in studying the number of people who use the ATM located outside its office late at night. On average, 1.5 customers walk up to the ATM during any 10 minute interval between 8pm and midnight. What is the probability of 3 or more people using this AT

Q: n a recent survey of 619 Salinas residents, 437 stated they experienced significant traffic delays…

A: 437 stated they experienced delay 182 not experienced delay 619 total

Q: A random sample of 100 blue-collar employees at a large corporation are surveyed to assess their…

A: Given: Sample size (n) = 100 Probability of success (p) = 0.60 Let X ~ Bin (100, 0.60)

Q: The Center for Medicare and Medical Services reported that there were 295,000 appeals for…

A: Binomial Distribution: If we have n trials each having two outcomes, say Success and Failure, trials…

Q: A campus program evenly enrolls undergraduate and graduate students. If a random sample of four…

A:

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: On average, six people per hour conduct transactions at a special services desk in a commercial…

A: Define the Random Variable, X : Number of people conduct transaction. We will assume poisson…

Q: Sixty percent of new drivers have had driver education. During their first year, new drivers without…

A: Define the following events : A : committing an accident. B : driver having proper driver education.…

Q: A cell phone company found that 75% of all customers want text messaging on their phones, 80% want…

A: Given: Let's say that the total population is 100. Number of people want messaging is 75 Number of…

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: College Education and Business World Success R. H. Bruskin Associates Market Research found that…

A: Formula : Binomial distribution is given by

Q: A manufacturing company regularly conducts quality control checks at specified periods on the…

A: Obtain the probability that four or more of the LED light bulbs are defective. The probability that…

Q: The National Aeronautics and Space Administration (NASA) has experienced two disasters. Challenger…

A: The National Aeronautics and Space Administration (NASA) has experienced two disasters. Challenger…

Q: Given that a person bought a hybrid vehicle, what is the probability that it was a truck?

A: Let us define some events A : a person buys a hybrid vehicle. B : a person buys a truck. Given that…

Q: It was revealed that 5% of all automobiles in a city did not pass inspection. Of the next ten…

A:

Q: At a tune-up and brake repair shop, the manager has found that a car will require a tune-up with…

A: A= Tune up B= Repair job

Q: Do Generation X and Boomers differ in how they use credit​ cards? A sample of 1,000 Generation X and…

A: A sample of 1,000 Generation X and 1,000 Boomers revealed the results in the given table.

Q: Seven of the 15 campus police officers available for assignment to the auditorium in which a local…

A:

Q: A survey of new Toyota Corolla owners has shown that during the first year of ownership, 11% of…

A: x = no. of time needs repair in a year x p(X) 0 0.75 1 0.11 2 0.10 >=3 0.04

Q: A fortune 500 company asked its 1520 employee this question: “Did the work condition too…

A: Given information can be shown in the table below:   Yes No Total Males 134 651 785 Females…

Q: As part of a promotional campaign, a store is offering a free Fitbit with the purchase of the new…

A: Let A denote the event that iPhone are faulty  Let B denote the event that Fitbits are faulty The…

Q: A biomedical research company produces 47% of its insulin at a plant in Kansas City, and the…

A:

Q: A farmer said that 2/3 of his apple trees were attacked by fruit flies. If the inspection is carried…

A:

Q: At a tune-up and brake repair shop, the manager has found that a car will require a tune-up with…

A: The probability that a car will require a tune-up is P(Tune)=0.6 The probability that a car will…

Q: in a tyre manufacturing company, an industrial statistician has declared that 25% of the tyre…

A: Let X be the random variable from binomial distribution with probability (p) = 25% = 0.25 and sample…

Q: The television show NBC Sunday Night Football broadcast a game between the Colts and Patriots…

A: Given information: P(Game) = 0.22 n = 33 Apply the binomial distribution formula:

Q: A company audit showed that of 867 bills that were sent out, 565 were paid on time, 122 were paid up…

A: a) It is given that, 867 bills that were sent out, 565 were paid on time, 122 were paid up to 30…

Q: A biomedical research company produces 41% of its insulin at a plant in Kansas City, and the…

A: Let us define some events A : insulin come from the plant in Kansas city. B : insulin come from the…

Q: When drawing a card from a well–shuffled deck, all fifty–two cards are equally likely. What is the…

A: We know that, in a deck of 52 cards we have 4 suits namely, hearts, diamonds, spades, and clubs.…

Q: The accompanying table gives information on the type of coffee selected by someone purchasing a…

A: 1) From the table, we see that 14% and 20% purchased small cups.  So, the probability that the…

Q: At a tune-up and brake repair shop, the manager hat found that a car will require a tune-up with…

A: Let A= a car require a tune-upB=a brake repair jobgiven,P(A)=0.6P(B)=0.1P(A∪B)=0.02

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 city commissioner claims that 80% of the people living in the city favour contracting out garbage…

A:

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: In a study of helicopter usage and patient​ survival, among the 45 comma 550   patients transported…

A: It is given that the number of patients left the treatment center against medical advice is 235 and…

Q: A study carried out by a company that repairs cell phones has concluded that 20% of cell phones that…

A: Let "X" be the cell phones that are dropped do not turn on again.

Q: The probability, to the nearest hundredth, that a randomly selected household subscribes to cable…

A: Given, A survey of households, who subscribe to Netflix and the percentage who subscribe to cable…

Q: A firm offers routine physical examinations as part of a health service program for its employees.…

A:

Q: A recent survey showed that 18% of MIS students have experienced some form of anxiety during the…

A: It is an important part of statistics. It is widely used.

Q: A geological study indicates that an exploratory oil well drilled in a particular region should…

A: If the third oil strike comes on the fifth well drilled. This means the first two oil strikes came…

Q: Market research in a particular city indicated that during a week, 18% of all adults watch a…

A: Percentage of adults watch a television program oriented to business and financial issues is 18%.…

Q: A quality control engineer inspects a random sample of three batteries from a lot of 30 car…

A: Given,total no.of batteries (N)=30no.of sample batteries(n)=3no.of defective batteries(M)=10X=no.of…

Q: A publisher sends advertising materials for an accounting text to 80% of all professors teaching the…

A: Let: R= Events of received materials R'= Events of not received materials  A= Event of adopting text…

Q: About 10% of all adults deliberately do a one-time fling and feel no guilt about it. In a group of…

A:

Q: Do Generation X and Boomers differ in how they use credit cards? A sample of 1,000 Generation X and…

A:

Q: The grades of a freshman college class, obtained after the first year of college, were analyzed.…

A: Percentage of students In top quarter is 70%. College class had graduated in the upper 10% of their…

Q: According to a study in a medical journal, 202 of a sample of 5,990 middle-aged men had developed…

A: Let S be the sample space and E be the event in S.  The probability of the event E is denoted by PE…

Q: 2) In a Canadian population, 30% of people spend 4 hours or more per day on smartphone; 25% of…

A:

Q: An annexation suit is being considered against a country subdivision of 1200 residences by a…

A: Givenno.of residences = 1200half of the residenced object to being annexedp=6001200=12=0.5sample…

Q: A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just…

A: Consider that p is population proportion of headache sufferers who get relief with just two…

Q: A random sample of 2072 adults was taken, and they were asked if they prefer watching sports,…

A: Sports Movies News Total Dog 411 328 514 1253 Cat 180 319 320 819 Total 591 647 834 2072