18. One of the findings of a group of marketing research students is that 47% of working mothers hold full-time jobs. If a random sample of 40 working mothers is drawn, what is the probability that: a. exactly 10 mothers will hold full-time jobs? b. at most 5 mothers will hold full-time jobs? c. at least 36 mothers will hold full-time jobs?

Q: A psychology class consists of 36 males and 48 females. If the professor selects names from the…

A: Given, A psychology class consist of 36 males and 48 females. and professor select names from the…

Q: 4. A box of ten items contains 7 good and 3 defective items. If a sample of two items is selected,…

A: 4. There are totally 10 items in a box out of which 7 are good and 3 are defective. The sample of…

Q: 5. A student majoring in accounting at Kohat university is trying to decide on the number of firms…

A: Note:  Since we only answer up to 3 sub parts, We'll answer the first 3. Please resubmit the…

Q: Suppose that it is known that 10 percent of a certain population is color blind. If a random sample…

A: P(color blind)=0.1 n=20 Let X be the no. of color blind X~Binomial20,0.1

Q: 1. Suppose that 31% of adults have at least one tattoo. If you sample 90 rand adults, what is the…

A: Z = p^-pp(1-p)n~N(0,1)

Q: Suppose there is a 25.4% probability that a randomly selected person aged 30 years or older is a…

A:

Q: 2) It is estimated that 3.5% of the general population will live past their 90th birthday. In a…

A: Given: It is estimated that 3.5% of the general population will live past their 90th birthday.  In…

Q: A psychology class consists of 28 males and 52 females. if the professor selectes names from the…

A: (a) Obtain the probability that the first student selected will be a female. The probability that…

Q: 1. Suppose that 31% of adults have at least one tattoo. If you sample 90 random adults, what is the…

A: From the given information the probability that adult have tattoos is .31. Samples are taken random…

Q: ontribute to household expenses. 23% of them contribute. a.      What is the probability that at…

A: NOTE:  As per the guidelines, we are supposed to solve the first three sub parts only. Given:…

Q: (a) Suppose one of these people is selected at random. Compute the probability that the person…

A: HERE AS PER GUIDELINES I HAVE CALCULATED 3 SUBPARTS  HERE USE GIVEN DATA TABLE and basic probability…

Q: According to Cerulli Associates of Boston, 30% of all CPA financial advisors have an average client…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: Suppose that in the bookkeeping operation of a large corporation the probability of a recording…

A: Givenp=0.005n=1000Let "x" be the billings contain a…

Q: The guidance counselor of a large high school reports that 48.5% of Junior Pre-Calculus students…

A: Let S denote the students sign up to take AP statistics next year and C denotes the students sign up…

Q: 6. It is estimated that 4000 of the 10,000 voting residents of a town are against a new sales tax.…

A: 6th question : 4000 of 10000 voting residents of a town are against of new sales tax.

Q: If 63% of the people at a certain conference are doctors, 48% are women, and 39% are doctors, what…

A: The following information has been given: The probability that people at a certain conference are…

Q: A teacher at Soledad Prison has 22 thugs in his class, including the “extra-mean” thugs Bluto,…

A: We have to use hypergeometric distribution to find the probabilities.

Q: 3. A bank has the following data on the gender and marital status of 200 customers. What is the…

A:

Q: 1. One prominent physician claims that 70% of those with lung cancer are chain smoker. If his…

A:

Q: Suppose that the true proportion of households with at least one car is T = .80. If a random sample…

A: Assume that π as the true proportion of households with at least one car.

Q: (a) What is the probability that a person chosen at random from those in this sample will be in the…

A: We know that the probability of an even is given by the formula

Q: (a) Suppose a mechanic begins to diagnose the problem by checking the spark plugs first and find…

A:

Q: 20. Suppose that 21% of people own dogs. If you pick two people at random, what is the probability…

A: Given,The probability people own dogs is 0.21

Q: 4.8) Suppose that 5 percent of men and 0.25 percent of women are color-blind. A person is chosen at…

A:

Q: 3) Suppose that among employed women, 25% have never been married. Suppose we randomly sample women…

A: Given that, among employed women, 25% have never been married p=0.25 We have to find probability…

Q: a. What is the probability that exactly 10 are from their elementary school? b. What is the…

A: Given:  In one of the biggest schools in Metro Manila, 80% of their high school students are known…

Q: 4. What is the probability that in a family of 3 children, at least two are girls? 5. What is the…

A: The specified probability for a number of events, where a specific number of boys or girls occur in…

Q: 4. One prominent physician claims that 70% of those with lung cancer are chain smokers. If this…

A: Given problem is :

Q: It is estimated that 3000 of the 9000 voting residents of Socorro-Texas are against republican…

A: Note: Thank you for the question. Since multiple questions are posted, according to our policy, we…

Q: From the same data, answer the following 1. What is the probability that it is a male or in…

A: According to the Bartleby guidelines only three sub-parts of the question can be solved at one time,…

Q: If records indicate that 4 houses out of 1000 are expected to be damaged by fire in any year, what…

A: Given that 4 houses out of 1000 are expected to be damaged by fire in any year. Therefore,…

Q: 3. A traffic control engineer reports that 75% of the vehicles passing through a checkpoint are from…

A: 3)  -probablity is 3/7

Q: It is known that approximately 90% of the population is right-handed. In a sample of 100 people,…

A:

Q: A company that produces fine crystal knows from experience that 10% of its goblets have cosmetic…

A: From the provided information, A company that produces fine crystal knows from experience that 10%…

Q: 3. A traffic control engineer reports that 75% of the vehicles passing through a check point are…

A: Given,n=5p=1-0.75=0.25A random variable X~Binomial(n=5 , p=0.25)P(X=x)=5x0.25x1-0.255-x ; x=0,1,...5

Q: 8. It is estimated that 80% of people in Cyprus take paracetamol for headache treatment. Out of 5…

A: The Binomial probability mass function formula is stated as below                          P(X=x)…

Q: 2) A company was examining the perception of sports fans in a specific region and outside of that…

A: Let's define events,  A : a person was from the region  B : a person was not from the region.   C :…

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

A:

Q: 1. One prominent physician claims that 65% of persons with lung cancer are smokers. If the claim is…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer one question at a…

Q: 21 Suppose it is known that 40% of Americans own an iPhone. If a random sample of 60 Americans were…

A:

Q: 2) A CNN/USA Today/Gallup poll in April 2005 reported that 75% of adult Americans were satisfied…

A: 2) Given information: It was stated that in April 2005CNN/USA Today Gallup poll reported the…

Q: (11) A three-person jury is to be selected, at random, from a pool that has 6 people with green eyes…

A:

Q: Suppose a math class contains 37 students. There are 23 females (four of whom speak Spanish) and 14…

A: From the given information we make a table   Male Female Total Speaks Spanish 4 4 8 Do not…

Q: 3.12 In a city of 180,000 people there are 20,000 legal im- migrants from Latin America. What is the…

A: Probability: Probability is a chance factor that occurs at every outcome of a random experiment.…

Q: 10) According to the American Academy of Ophthalmology, there is a 45% chance that someone will have…

A:

Q: The probability that​ brown-eyed parents, both with the recessive gene for​ blue, will have a child…

A:

Q: 2. A shipment of twelve smartphones contains seven with cracked screens. If sold in a random order,…

A: Given, Total no of smart phones in shipment = 12 Total no of smart phones with cracked screens = 7…

Q: 4/ A public health researcher examines the medical records of a group of 837 men who died in 1998…

A: We first make a table using the given data   died from heart disease did not die from heart…

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.