study found that only 60% of all married women say that they would marry the same man “if they could do it all over again”.  If we randomly sample 15 married women, find the probability that – (a) exactly twelve say they would marry the same man “if they could do it all over again”.

Q: According to a recent study, 14% of U.S. drivers are uninsured. A random sample of seven drivers was…

A:

Q: A Food Marketing Institute found that 51% of households spend more than $125 a week on groceries.…

A:

Q: It has been been found that 1 out of 10 visitors to a museum buys something from a gift shop. If we…

A:

Q: A study has shown that 65% of students at some time in their college career have skipped buying…

A: Solution-: Given: We find,

Q: The percentage of female Americans 25 years old and older who have completed 4 years of college or…

A:

Q: A new surgery is successful 70%of the time. If the results of 9 such surgeries are randomly sampled,…

A: Given that a new surgery is successful 70%of the time.  Probability, p = 70% = 0.70 Sample size, n =…

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

A:

Q: The incidence of disease in a forest is such that 20% of the trees in the forest have the chance of…

A:

Q: A nationwide survey of 17,000 seniors by the University of Michigan reveals that almost 70%…

A: Given p=0.7 n=18

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

A: From the provided information, Sample size (n) = 100 Probability (p) = 0.53 Now,

Q: In​ 1970, 94​%of​ 30-year-olds in a country earned more than their parents did at age 30​ (adjusted…

A: Since you have posted multiple sub-parts, we will solve the first three sub-parts for you. To get…

Q: A survey showed that 73% of adults need correction ( eyeglasses, contacts, surgery,etc.) for their…

A: Let us denote X= the number of persons who need correction for their eyesight. n= number of trials =…

Q: In a Survey, 85% of the people interviewed were unaware that maintaining a healthy weight could…

A: Givenp=0.85n=20Let "x" be the no.of people are unware that maintaining a healthy weightcould reduce…

Q: Suppose the first generation Apple iPad has 5% chance of being defective. What is the probability…

A: From the provided information, Apple iPad has 5% chance of being defective that is p = 0.05 Sample…

Q: A report from the Secretary of Health and Human Services stated that70% of single-vehicle traffic…

A:

Q: A corporation receives 120 applications for positions from recent college graduates in business.…

A: Given: p=0.4 n=120

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

A: From the given information, it is observed that 50% of households spend more than $125 on groceries.…

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

A:

Q: It is estimated that 75% of all young adults between the ages of 18 and 35 do not have a landline in…

A: Givenp=0.75sample size(n)=100Let "x" be the adults do not own a…

Q: Last week, a flower delivery business conducted a survey on customer happiness. They found that 51%…

A:

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

A:

Q: A survey by the American Automobile Association (AAA) revealed 60 percent of its members made…

A: Let p be the probability that a person had made airline reservation last year. Then, p=0.6.

Q: A nationwide survey of 17,000 college seniors by the University of Michigan revealed that almost 70%…

A:

Q: Suppose a certain study reported that 27.7% of high school students smoke. Random samples are…

A: Solution solution:- Let 'X' be the no.of people in sample that smokertherefore, X~Bin(n,ρ)   n=60,…

Q: what is the probability that fewer than 30% in your sample will get news online or from a mobile…

A: Given: n=100 p0 = 0.39 p=0.30 Calculate the z score as follows:

Q: A study was conducted to determine whether there were significant differences between medical…

A: Given information :  A study was conducted to determine whether there were significant differences…

Q: 2. According to the BTS Organization, 53% of adult Filipinos are in favor of the death penalty for…

A:

Q: A survey showed that 81% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: Obtain the probability that no more than 1 of them needs correction for their eyesight. The…

Q: A survey showed that 79% of adults need correction (eyeglasses, contacts, surgery, etc.) for their…

A: Let p be the probability that an adult needs eyesight correction. Given that p = 0.79 Let X denote…

Q: A certain prescription drug is known to produce undesirable side effects and 45% of all patients who…

A:

Q: In a survey of Canadian nurses who worked more than 45 hours per week, it was found that 321 nurses…

A: Given Data n(nurse under 35 age)=321 n( nurse between 35 to 55 age)=403   Total=321+403=724

Q: A Particular study showed that 12% of Men will likely develop prostate cancer at some point in their…

A: Let C be the event representing that a man will likely develop prostate cancer . The probability…

Q: 5. Out of all registered vehicles in California, 95% of them pass the State Emissions Test. If ten…

A: Given information Probability of passing the emission test p = 0.95 10 vehicles are selected X…

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: Let us denote X=the number of employees who would lay off their bosses. n=sample size= 10…

Q: A sample of 400 adults found that 82 have high blood pressure. However, 98 of those studies reported…

A: Given data, Total number of adults n=400 No of people that are unwilling to change diet =98 P(he or…

Q: According to a​ survey, ​26.6% of​ credit-card-holding families in a certain area hardly ever pay…

A: Obtain the probability that at least 4 families hardly ever pay off the balance.   The probability…

Q: A recent survey found that 86% of first-year college students were involved in volunteer work at…

A: The provided information are:Proportion of first-year college students were involved in volunteer…

Q: In a survey of US adults with a sample size of 2000, there are 1229 people who said Ronald Reagan…

A: We can select the first adult who said Ronald Reagan was the best president in 1229 ways.  We can…

Q: 13 percent of the patients in a study reported previous episodes of a stroke. Use 13 percent as the…

A: The mean and the standard deviation of the sampling distribution of the sample proportion is,

Q: According to a study 20% of corporate officers are women. Suppose that you select a random sample of…

A: Z-score for proportion:

Q: According to a study, 20% of corporate officers are women. Suppose that you select a random sample…

A:

Q: Public Opinion reported that 5% of Americans are afraid of being alone in a house at night. If a…

A: There is only two possibilities either the selected person is afraid of getting alone as success or…

Q: A recent survey taken by Adecco of 1,047 employees found that 28% of them would lay off their bosses…

A: It is given that in a survey taken by Adecco of 1,047 employees found that 28% of them would lay off…

Q: A nationwide survey of college seniors by a university revealed that almost 70​% disapprove daily…

A: Let's assume,  p= probability that seniors by a university disapprove daily pot smoking  n = number…

Q: Suppose a certain study conducted in 2000 reported 71.3% of men between the ages of 45 and 54 are…

A:

Q: A survey showed that 84​% of adults need correction​ (eyeglasses, contacts,​ surgery, etc.) for…

A: The density function of binomial distribution is:

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: In a survey of 3 of 4 students said the courts show too much concern for criminals.  Find the…

A: According to the given question, in a survey of 3 of 4 students said the courts show too much…

Q: A safety engineer claims that only 30% of all workers wear safety helmets when they eat lunch at the…

A: The Probability mass function for Binomial distribution is given by                     P(X=x)=ncx…

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.