According to a Wakefield Research survey of adult women, 50% of the women said that they had tried five or more diets in their lifetime (USA TODAY, June 21, 2011). Suppose that this result is true for the current population of adult women. A random sample of 10 adult women is selected. Use the binomial probabilities table or technology to find the probability that the number of women in this sample of 10 who had tried five or more diets in their lifetime is a. at most 7 Round your answer to four decimal places. P(at most 7) = i b. 2 to 4 Round your answer to four decimal places. P(2 to 4) = i C. at least 7

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

A:

Q: In 2014, approximately 13% of nonelderly Americans adults had no health insurance. Suppose that a…

A: Given: Proportion of American adults having no health insurance, p=0.13 Sample size, n=400

Q: If 25 percent of students at a particular school use mechanical pencils, what is the probability of…

A: Given Information: The percentage of students using mechanical pencils =25% Number of the sample…

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: If administrators are selected randomly from the​ faculty, what is the approximate probability that…

A: Given that, No. of teachers = 2000 P(men) = p = 50% = 0.50 P(women) = q = 50% = 0.50 No. of…

Q: A pharmaceutical company claims that only 5% of patients experience nausea when they take a drug. In…

A: We have given that X be a random variable that is patients experience nausea is follow Binomial…

Q: In one study of calls to 911 in Los Angeles, it was found that 85% of the calls were not…

A: Solution: From the given information, the proportion of the calls were not emergencies is p=0.85 and…

Q: A study showed that 64.5​% of occupants involved in a fatal car crash wore seat belts. Of those in…

A: Solution: Let A be the event that  occupants involved in a fatal car crash wore seat belts. P( A)=…

Q: On average, 5.5 shoplifting incidents occur per week at an electronics store.  What is the…

A: Poisson Distribution :  A Poisson distribution is a discrete probability distribution that applies…

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: A recent study suggested that 70% of all eligible voters will vote in the next presidential…

A: Given Information: 70% of all eligible voters will vote in the next presidential election i.e., p =…

Q: Of the cartons produced by a​ company, 7​% have a​ puncture, 4​% have a smashed​ corner, and 1.1​%…

A: It was stated that the cartons produced by a​ company, 7​% have a​ puncture. The cartons produced by…

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

A:

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

A: Given data, 65% of students at some time in their college career have skipped buying required…

Q: A certain group of women has a 0.79% rate of​ red/green color blindness. If a woman is randomly​…

A: Solution: From the given data, The probability that women in a certain group has red/green color…

Q: A study showed that ​69.7% of occupants involved in a fatal car crash wore seat belts. Of those in a…

A:

Q: If 25 percent of students at a particular school use mechanical pencils, what is the probability of…

A:

Q: Based on a​ poll, 70​% of Internet users are more careful about personal information when using a…

A: In this case, each surveyed user is inferred to have only options of being "more careful" (i.e.,…

Q: Airlines report that 45% of its flights are on time.  In a random sample of 80 flights, what is the…

A:

Q: n the toal US population, it is believed that only 12% of adults are lactose intolerant. if 200 US…

A: In this case, each considered US adult has the only options of being "lactose intolerant" (defined…

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

A:

Q: Atlantic Airways flights were late (arrived or departed 15 minutes late or more). A random sample of…

A: We have given that  Number of trials n=140 Success of probability p =20.4%=0.204 We use normal…

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: It is determined that 62% percent of Grade 12s attend school in a particular urban school district.…

A: Given : n = 500 p = 0.62 q = 1 - p  q = 1-0.62 q = 0.38 Here n×p and n×q is greater than 5. hence we…

Q: A new surgery is successful 80% of the time. If the results of 6 surgeries are randomly sampled,…

A:

Q: Eswatini has the highest HIV prevalence in the world: 27.2% (2019 value) of this country's…

A: Given that: PHIV=0.272P+ve|HIV=0.997P-ve|not HIV=0.926

Q: In a study, 42% of adults questioned reported that their health was excellent. A researcher wishes…

A: Let us denote X=the number of people with excellent health.n=sample size=13p=probability of…

Q: It is stated by the IRS that 71% of filed returns receive a refund.  If you were to sample 50…

A: According to the given question, it is stated by the IRS that 71% of filed returns receive a refund.…

Q: A weighted coin has a 0.664 probability of landing on heads. If you toss the coin 28 times, what is…

A: Given data P(head) = p = 0.664no. of trials (n) = 28x = no. of time head tossedP(x=X) = nCxpxqn-x…

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.