Samples of 20 parts from a metal punching process are selected every hour. Typically, 1% of the parts require rework. Let X denote the number of parts in the sample of 20 that does not require rework. If the rework percentage increases to 4%, what is the probability that all 20 samples do not require rework?

Q: Thirty percent of a population of consumers is reputed to prefer a particular brand, say Brand A, of…

A: If each trial has only two possible outcomes, that is, success and failure, the probabilities of…

Q: Based on a smartphone survey, assume that 49% of adults with smartphones use them in theaters. In a…

A: A)

Q: Based on a smartphone survey, assume that 45% of adults with smartphones use them in theaters. In a…

A: Given: It is given that 45% of adults with smartphones use them in theaters thus, Thus, the mean…

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

A: Solution

Q: In a population of wild flowers 53% are yellow and the remaining flowers are purple. If we took a…

A: Given p=0.53 n=263 Since np=139.39>10 and np(1-p)=65.51>10 Now, using normal approximation,…

Q: Obtain the probability distribution of X that shows the number of heads in a three tosses of a coin.

A: Consider X be the random variable that could take the values 0, 1, 2 and 3. The sample space could…

Q: Twenty-six percent of couples who plan to marry this year are planning destination weddings. In a…

A:

Q: Of the 6 people who have taken their seats at a seminar, 2 have black hair. What is the experimental…

A: From the given information, 6 people who have taken their seats at a seminar, 2 have black hair.…

Q: A.A safety engineer claims that only 40% of all workers wear safety helmets when they eat lunch at…

A:

Q: Sixty percent of a population of consumers is reputed to prefer a particular brand A, of vaccine. If…

A: Hai

Q: On average, Connor has noticed that 20 trains pass by his house daily (24 hours) on nearby train…

A: Let X be the number of trains passing by his house

Q: A department store has determined that 36% of all their sales are credit sales. A random sample of…

A: Given: p=0.36 n=65

Q: According to a poll of​ adults, about 4848​% work during their summer vacation. Assume that the true…

A: From the given information, it is clear that sample size, n = 600.The probability of success, p hat…

Q: The table summarizes results from 983 pedestrian deaths that were caused by automobile accidents.…

A: Total number of pedestrian who's no  intoxicated =70+573=643 Total number of accident=983 We want to…

Q: Twenty percent of all undergraduates at a university are chemistry majors. In a random sample of…

A: Given information:Population proportion (p) = 20%                                         p =…

Q: At a pre-school 54% of children prefer the colour red over the colour green. From a sample of 80…

A:

Q: A study shows that 15% of adult males don’t wash their hands in a public restroom. We take a random…

A:

Q: A manufacturing process that produces electron tubes is known to have a 10% defective rate. Suppose…

A: X~B(n,p)P(X=x)=nxpx(1-p)(n-x)    x=0,1,2,3,...,nE(x)=mean=npvariance=np(1-p)

Q: According to a survey by the Administrative Management Society, one-half of U.S. companies give…

A: Given: Sample size of companies (n) = 6 Probability of a company giving vacation (p) = 0.5 Let X be…

Q: If the percentage of sulfate-resistant concrete pieces in one of the factories is 25%, how many…

A:

Q: A recent survey showed that 17% of households spend more than $100 per week on groceries. Assume the…

A:

Q: A Food Marketing Institute found that 50% of households spend more than $125 a week on groceries.…

A:

Q: A study of 240 randomly selected residents of a subtropical resort city with 82,000 residents found…

A: It is given that n =240 and p =0.03.

Q: At a cell phone assembly plant, 82% of the cell phone keypads pass inspection. A random sample of…

A:

Q: A die is weighted in such a way that each of 2, 4, and 6 is twice as likely to come up as each of 1,…

A: Given: A die in which 2,4,6 is likely to come twice as each of 1,3,5. The objective is to find the…

Q: It is a well-established fact that 40% of people are scared of squirrels. If we take a SRS of 50…

A:

Q: a proportion of 0.4 are not satisfied with the service offered by the store. In a random sample of…

A: According to central limit theorem if the sample size n and population proportion p satisfies np≥10…

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 reported that 48% of people text and drive. A random sample of 60 drivers is drawn. Find…

A: Given that, n = 60 , p = 0.48 The mean and Standard deviation of the sampling distribution of…

Q: Find the probability that a lot of 100 items, of which five are defective, will be accepted in a…

A: Here, Total number of items in a lot, N = 100 Number of defective items, x = 5 Sample size, n = 50…

Q: Five percent of all credit card holders eventually become delinquent. The probability, rounded to…

A: Given, p = 5% = 0.05 q = 1 - p = 1 - 0.05 = 0.95 n = 19

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: A survey has shown that on average, 1 person in 1000 makes a mistake on leaving their belongings…

A:

Q: A certain group of women had a 0.73% rate of red/green color blindness. If a woman is randomly…

A: It is given that a certain group of women had a 0.73% rate of red/green color blindness.

Q: A Food Marketing Institute found that 30% of households spend more than $125 a week on groceries.…

A:

Q: It is estimated that 8.3% of all Americans have diabetes.  Suppose that a random sample of 74…

A: It is given that:

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 the main system and a backup system operating throughout…

Q: According to data from the ABC Group, 36% of Americans eat breakfast every day of the week. Assume…

A: Let "X" be Americans who eat breakfast every day.

Q: The probability of an adult in Australia having hazel colored eyes is 20%. If a simp random sample…

A: Given information: The probability of an adult in Australia having hazel colored eye is 20%. The…

Q: in a large population 68% of the people have been vaccinated,if 4 people were selected, what is the…

A:

Q: Of all 3- to 5-year-old children, 56% are enrolled in school. If a sample of 500 such children is…

A:

Q: A Food Marketing Institute found that 42% of households spend more than $125 a week on groceries.…

A: Given that, p = 0.42 1 - p = 1 - 0.42 = 0.58 n = 126

Q: According to a poll of​ adults, about 40​% work during their summer vacation. Assume that the true…

A: From the given information, Sample size (n) = 500 Probability of success (p) or adult work during…

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

A: The probability that the adult is infected with virus is 0.004. When at least one of the person has…

Q: 7 percent of all cooling fans produced in a factory are defective. A quality inspector randomly…

A: Let p be the probability that a fan is defective. Given that p = 7% = 0.07 Let X denote number of…

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: 65% of Americans drink one coffee a day. With a random sample of 45 Americans, what is the…

A: Solution: Given information: n= 45 Sample of Americans  p= 0.65 Population proportion of Americans…

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

A: Let X denotes the number of defective LED bulbs. Here, n = sample size = 10 and p = 0.09 Thus, the X…

Q: Suppose the blood types of 400 students were examined, 100 of which have blood type B, and a simple…

A: