A university has found there is a 3% probability that an application contains an error. Assume applications are mutually independent. An officer randomly selects 100 applications, what is the probability that 95% or less of the selected applications have no error?

Q: Suppose that you sampled 2 CEOs with replacement instead. How many different samples are possible,…

A: Sampling is a process which is used in statistical analysis. In sampling a predetermined number of…

Q: The most popular color for compact/sports cars is dark green, with 15.2% of owners preferring that…

A:

Q: A monk crossbred plants, which can have purple or white flowers, and obtained 600 plants with white…

A: The number of white flower plant are 600. The number of purple flower plant are 250.

Q: If a randomly selected female student abstains from​ alcohol, what is the probability she attends a…

A: Given info: 20.4% of women attending all-women colleges abstained from alcohol, compared to 17.7% of…

Q: In a recent​ survey, it was found that the median income of families in country A was $57,300. What…

A:

Q: A cookie is selected at random from a basket containing 27 peanut butter ​cookies, 16 caramel…

A: Given info: The basket contains 27 peanut butter ​cookies, 16 caramel ​cookies, 11 sugar ​cookies,…

Q: A leading large college recently reported that 40.5% of its student body had concerns about the…

A:

Q: Eighty-two % of trees planted by a local landscaping company survive. In a random sample of 200…

A: Solution

Q: According to the U.S. Coast Guard, sixty-five percent of boating accidents occur in light wind…

A: From the provided information, Sample size (n) = 20 Sixty five percent of boating accidents occur in…

Q: Seventy percent of rivets from vendor A meet a certain strength specification, and 80% of rivets…

A: Let T denotes with the addition of two random variables(X+Y)

Q: A monk crossbred plants, which can have purple or white flowers, and obtained 686 plants with white…

A: Given, Total number of flowers =686  Plants with white flowers  plants with purple flowers =1076…

Q: About 8% of the U.S. population catches the flu each season. Assuming everyone has equal probability…

A: Given: About 8% of the U.S. population catches the flu each season.

Q: A recent poll found that 30% of those surveyed are worried about aggressive drivers on the road. If…

A:

Q: ·An unbiased die is thrown 8 times. What is the probability of getting a six in at least one of the…

A:

Q: Assume that 40 percent are of type A, 30 percent of type B, and 30 percent of type C. It is known…

A: Let G= Event that the seed is germinated P(A)=0.40 , P(B)= 0.30 , P(C)=0.30 P(G|A)=0.20 ,…

Q: An electrical system consists of fourcomponents as illustrated. What is the probability that the…

A:

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: In a recent study, 65% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A: Given,n=11p=0.65Let X =no.of people name their favorite flavor of ice cream.X~Binomial(n=11 ,…

Q: In a population where 26 % of voters prefer Candidate A, an organization conducts a poll of 5…

A:

Q: A cookie is selected at random from a basket containing 16 sugar ​cookies, 28 peanut butter…

A: Ans --> Given, A cookie is selected at random from a basket containing 16  sugar cookies,  28…

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

A:

Q: According to the AABB, 40% of the population has Type A blood.  Suppose a certain hospital typically…

A: The mean is,μ=np The standard deviation is, σ=np(1-p) n is the sample size and p is the proportion.…

Q: A coach claims that no more than 1/4 of undergrad students will attend football games. What is the…

A: Central limit theorem: The central limit theorem states that the sampling distribution of the sample…

Q: If 200 Honda Accords are randomly selected, approximately how many of them will have the braking…

A: Given data,μ=45σ=0.5

Q: It has been estimated that 21% of Americans are smokers. If four American adults are chosen at…

A: Given that, proportion, p= 21%  p= 0.21 So q= 1-p= 1-0.21 = 0.79 And sample size is n= 4 So X~…

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: impact of caffeine consumption. Smoking alcohol consumption and physical activity on cardiovascular…

A: Given that,  40% of participants consume caffeine and smoke. 8 participants are evaluated. Here,…

Q: In the construction of midrise buildings, a safety engineer claims that only 40% of all workers wear…

A: Solve using Binomial distribution

Q: Of a group of patients having injuries, 28% visit both a physical therapist and a chiropractor and…

A:

Q: A component of a spacecraft has both a main system and a backup system operating throughout a…

A: Given: A component of a spacecraft has both a main system and a backup system operating throughout a…

Q: An average student is known to have a chance of 50% in answering a TRUE or FALSE question correctly.…

A: Obtain the probability that an average student will have at least 1 correct answer.   The…

Q: In a technology company, it is known that the average of network failure is 3 per week. What is the…

A: Let X denote the number of failures per week.  It is given that Average number of failures per week…

Q: In a factory that produces blocks of ready- made concrete, if the percentage of production of…

A: Given data,Sample size n=5Percentage of production of defective blocks is p=0.6Let X be event that…

Q: It is known that in a batch of milk cartons, 30% are underfilled. In a sample of six milk cartons…

A: Given that the batch of milk cartons underfilled is 30% and there are sample of six milk cartons.…

Q: A flashlight has 71 batteries, 13 of which are defective. If two are selected at random without…

A:

Q: Three percent of a given lot of manufactured parts are defective. What is the probability that in a…

A:

Q: In a technology company, it is known that the average of network failure is 2 per week. What is the…

A: Let X denote the number of failures per week.  It is given that Average number of failures = 2

Q: Fifty-three percent of U.S. households have a personal computer. In a Random sample of 250…

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

Q: It has been found from experience that there is an average of five faults per 50 metres of cloth…

A: Probability distributions are of 2 types, discrete and continuous. Poisson distribution is a…

Q: Sixty-five percent of men consider themselves knowledgeable football fans. If 10 men are randomly​…

A:

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

A: It is given that, Aspirin claims that the proportion of headache sufferers who get relief with just…

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

A:

Q: In testing a certain kind of truck tire over rugged terrain, it is found that 39% of the trucks fail…

A: Given : Let X : Number of trucks have blowouts  p : 0.39 ( Probability of trucks fail to complete…

Q: A recent study shows that 4% of California residents consider purchasing an electric car . If we…

A:

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

A:

Q: On one large campus, 18% of students surveyed said that they spend less than an hour a night…

A: Let X denotes the number of students spend less than hour a night studying. Here, n= 3 and p = 18%…

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: In a batch of 140 calculators, 7 are found to be defective. Estimate the probability that a randomly…

A: From the information, batch of 140 calculators, 7 are found to be defective.

Q: A manufacturer of metal pistons finds that on the average, 18% of his pistons are rejected because…

A: Givensample size(n)=15p=18%=0.18Let "x" be the no.of pistions…

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.