In a random sample of 1250 adult drivers, 450 said that they would cut their driving by 10% if this sig Find a 95% confidence interval estimate of the proportion of adult drivers who are willing to cut their environment. O 0.36 + 1.96 (0.36)(0.64) V1250 O 0.36 +1.96 (0.90)(0.10) 1250 (0.36)(0.64) 0.36+ 1.96 1250 (0.10)(0.90) O 0.36 +1.96-

Q: In Cleveland, a random sample of 73 mail carriers showed that 10 had been bitten by an animal during…

A: Given, n1 = 73 x1 = 10 n2 = 80 x2 = 16 confidence level = 1 - α = 0.95 α = 0.05α2 = 0.025   To find,…

Q: Suppose a researcher is interested in the effectiveness of a new drug intended to naturally increase…

A:

Q: In a survey of 650 randomly selected U.S. males ages 18-64, 396 say they have gone to the dentist in…

A: Given,n=650x=396p^=xnp^=396650=0.6091-p^=1-0.609=0.391α=1-0.90=0.1α2=0.05Z0.05=1.645     (from…

Q: In Cleveland, a random sample of 74 mail carriers showed that 12 had been bitten by an animal during…

A:

Q: In another pre-election poll, a pollster finds that 438 out of 600 people polled favor, Smith.…

A: Given, X = 438 N = 600 The sample proportion is given by:

Q: In a simple random sample of 300 college students, 35.0 percent stated that they intended to pursue…

A: The random variable X follows normal distribution. We have to construct 95% confidence interval.…

Q: A recent study among 120 street hawkers in Johannesburg showed that 42 of them are of the opinion…

A:

Q: In a random sample of 500 people eating lunchbat a cafeteria on various fridays, it was found that…

A: Given X=160 n=500 P=X/n

Q: The president of the Madaba Bank wants to confırm her belief that the bank has a low rate of…

A:

Q: A Gallup poll of 1001 Americans age 18 and over conducted in May of 2013 found that 80% of the…

A: Solution: From the given information, p-hat=80% and the margin of error is 3.2%.

Q: A New York Times/CBS News Poll asked a random sample of U.S. adults the question “Do you favor an…

A: From the provided information, Confidence level = 95% Confidence limit = (0.63, 0.69)

Q: In a survey of health workers, 25 percent stated that they expect to be promoted after 3 years of…

A: From the provided information, 25 percent stated that they expect to be promoted after 3 years of…

Q: A study is being planned by a pharmaceutical company to estimate the proportion of customers who…

A: We have given that,  Margin of error (E) = 3% = 0.03, confidence interval = 95%  Then,  We will find…

Q: A large home improvement store is considering expanding its selection of moving products, such as…

A: Given that  A large home improvement store is considering expanding its selection of moving…

Q: In the past, 44% of those taking a public accounting qualifying exam have passed the exam on their…

A: Denote p as the true proportion of individuals to pass the exam on first try.

Q: A national polling organization wishes to gener- ate a 98% confidence interval for the proportion of…

A: Given data,E=3%=0.03Let p=0.50z-value at 98% confidence is Zc=2.326n=?

Q: Independent random samples of 50 boys and 50 girls in a school were asked if they are depressed for…

A:

Q: In a sample of 225 registered voters of City Unknown, 63 of 100 males and 59 of 125 females support…

A: Given  X1=63, n1=100, X2=59, n2=125

Q: Between 27 April 2020 and 10 May 2020, Gallup surveyed a random sample of 8,712 U.S. adults…

A: e) Given information: p^=0.24n=8712 Confidence level is 95%. From the standard normal table, the…

Q: A U.S. Travel Data Center survey conducted for Better Homes and Gardens of 1500 adults found that…

A: Given: sample size, n=1500 sample proportion, p = 0.39

Q: A local health center noted that in a sample of 400 patients, 80 were referred to them by the local…

A: From the provided information, Sample size (n) = 400 From which 80 were referred to them by the…

Q: In a recent poll of 900 randomly selected adults, 37 % reported that they could not swim 24 yards…

A: Given information: In a poll of 900, randomly selected adults were examined if they could swim 24…

Q: In a random sample of 1,250 adult drivers, 450 said they would cut their driving by 10 percent is…

A: From the provided information Sample size (n) = 1250 450 said they would cut their driving by 10…

Q: To find the proportion of San Diegans subscribed to Disney+ in 2019, a researcher randomly selected…

A: Given that, n=200 p^=101200=0.505

Q: A U.S. Travel Data Center survey conducted for Better Homes and Gardens of 1500 adults found that…

A: Solution: Given information: n= 1500 Sample size  p^= 0.39 Sample proportion

Q: A national opinion poll found that 44% of all American adults agree that parents should be given…

A:

Q: A political candidate is anxious about the outcome of the next election. To have his next survey…

A: A political candidate is anxious about the outcome of the next election. To have his next survey…

Q: In a sample of 150 men, 132 said that they had less leisure time today than they had 10 years ago.…

A: Given that, x1=132  n1=150 p1^=x1n1=132150=0.88p2^=x2n2=236250=0.944Confidence of level…

Q: A certain article indicates that in a sample of 1,000 dog owners, 610 said that they take more…

A: Given: Sample size (n) = 1000 Number of owners who take more picture of their dog than their owner =…

Q: For many years businesses have struggled with the rising cost of health care. But recently, the…

A:

Q: A study was being done to estimate the proportion of students who receive financial aid. If the…

A:

Q: a recent survey, 1100 adult Americans were randomly selected and examined for high blood pressure.…

A: Given that  Survey of Americans examined for high blood pressure. A recent survey randomly selected…

Q: 4. A random sample of 64 bicycle-riding adults in Portland indicated that 24 always wore a helmet…

A:

Q: A researcher who was interested in knowing how many people in a city supported a new retirement plan…

A:

Q: A survey of 503 women shoppers found that 46% of them shop on impulse. What is the 99% confidence…

A: Given : Sample Size, n = 503 confidence level,c=0.99

Q: population proportion, what is the 95% confidence interval estimating the proportion of businesses…

A: Given : Sample Size, n = 673 Number of successes, x = 384 confidence level,c=0.95

Q: In a random sample of 200 females and 100 males who watched a certain television program, 94 females…

A: For Females : Out of 200 females , X = 94 females indicated they like it Sample proportion 1 =…

Q: From a sample of 200 of a  grocery store's customers, 30% visit the store at least once per week.…

A: The 95% confidence interval for proportion is p±zp1-pn                                   where…

Q: n a recent Zogby International Poll, nine of 48 respondents rated the likelihood of a terrorist…

A: Given that : x = 9 n = 48

Q: . In a random sample of 250 television viewers in a large city, 190 had seen a certain controversial…

A: 7. Given that the sample size is 250. Among 250 television viewers, 190 had seen a certain…

Q: To find the proportion of San Diegans subscribed to Disney+ in 2019, a researcher randomly selected…

A:

Q: Many people think that a national lobby's successful fight against gun control legislation is…

A:

Q: A sample of 100 shoppers chosen at random from all shoppers in a given province indicated that 55%…

A: Givan , Mean = 0.55 × 100 = 55 Standard deviation = √[(0.55)×(1-0.55)]×100 = √0.2475 × 100 = 49.749…

Q: In a random sample of n=1000 families in the city of Portland, it is found that x=600 families own…

A: Given Data Sample Size, n = 1000 Number of successes, x = 600 Significance level,…

Q: A certain article indicates that in a sample of 1,000 dog owners, 660 said that they take more…

A: The provided data mentions the value of sample size, n is 660 and the value of x is 470. The sample…

Q: In a certain state, a survey of 500 workers showed that 38% belonged to a union.  Find the 93%…

A: Computation of critical value: 1-α=0.93α=0.07α2=0.0351-α2=0.965 The critical value of z-distribution…

Q: A large home improvement store is considering expanding its selection of moving products, such as…

A: Given We have given 90% confidence interval (0.293, 0.355) for the proportion of all customers who…

Q: In a sample of 500 Canadians, 225 say they would rather retire in Florida than in Canada. Calculate…

A:

Q: 1) In a random sample of 200 Americans, 58% said they plan to spend less on their summer vacation…

A:

Q: 18. The governor of New York has banned selling or purchasing "large" soft drinks, where a "large"…

A: