Find a 95% confidence interval for the true population proportion.   In a poll of 1079 college students, 22% said that they had cheated at least once on an

Q: Of 500 random people surveyed, 72 were smokers.  Find the 95% confidence interval. SE=0.0157

A:

Q: Out of 300 people sampled, 156 had kids. Based on this construct a 90% confidence interval for the…

A: X = 156 N = 300

Q: In a Gallup poll of 804 randomly selected adults living in the 50 U.S. states and the District of…

A: Answer x =466n =804Confidence interval =95%

Q: In a sample of 460 adults, 262 had children. Construct a 95% confidence interval for the true…

A: Provided information: Total number of adults = 460 and 262 had children 95% confidence level

Q: In a survey of 3084 adults aged 57 through 85 years it was found that 81.9% of them used at least…

A: Given : Sample Size, n = 3084 confidence level,c=0.9 Significance level, α…

Q: 5.From a sample of 1,000 college students, 28% watch the Super Bowl game each year. Find the margin…

A:

Q: In a survey of 2344 ​adults, 715 say they believe in

A: Given that there are 2344 adults and 715 say they believe in UFOs. Consider the sample proportion,…

Q: An accounting research firm asked 2100 accountants “Have you ever fudged the numbers before?” and…

A: The sample size is 2100 and 40% responded yes.

Q: Insurance companies are interested in knowing the population percent of drivers who always buckle up…

A:

Q: In a survey of 1,200 social media users, 56% said it is not okay to be friends with your boss.…

A:

Q: Out of 400 people sampled, 32 had kids. Based on this, construct a 95% confidence interval for the…

A: Solution: Let X be the number of people had kids and n be the sample number of people. From the…

Q: A medical director needs to know the proportion of patients who have a single bed in their room. A…

A: It is given that sample size (n) is 200 and p-hat value is 0.59.

Q: In a study by Sallie Mae and Gallup, 223 of the 934 respondents said that they paid for their…

A: Obtain the 95% confidence interval for the proportion of students who paid for their education by…

Q: A survey of 400 students at Red Rock College found that 180 planned to take summer classes. Find a…

A:

Q: In a survey of 1005 adults 526 stated construct a 95% confidence interval

A:

Q: In a survey of 2282​ adults, 749 say they believe in UFOs. Construct a 90% confidence interval for…

A:

Q: In a survey of 2313 adults, 714 say they believe in UFOs.   Construct a 90% confidence interval for…

A: Given, In a survey of 2313 adults, 714 say they believe in UFOs. n=2313 x=714 Sample proportion:…

Q: A department chair wanted to know whose students performed better on a common pass/fail final exam:…

A: p1 :  proportion of students passed in smith's  class p2 :  proportion of students passed in Jones's…

Q: In your work for a real estate company, you find that in a sample of 1762 home buyers, 722 found…

A: Givenx=722n=1762p^=7221762p^=0.4098α=1-0.98=0.02α2=0.01zc=z0.01=2.3263         (from z-table)

Q: Of 219 employees selected randomly from a company, 10% of them commute by carpooling. Construct a…

A: Given Data Sample Size, n = 219 Sample proportion = p̂= 0.10 Significance level, α…

Q: In a survey of 700 random households in a particular city in NCR, adults have been 2) asked if they…

A: Hey there! Thank you for posting the question. Since there are multiple questions posted, we will…

Q: In a survey of 4061 ​adults, 738 say they have seen a ghost. Construct a​ 99% confidence interval…

A: In this question, it has been given that 738 people out of 4061 people have seen the ghost, we have…

Q: when 282 college students are randomly selected and surveyed, it is found that 109 own a car. find a…

A: It is given that sample size (n) is 282 and x is 109.

Q: A recent study showed that among 725 randomly selected subjects who completed 4 years of college,…

A: We have given that,  Favorable cases (X) = 139 and Sample size    (n) = 725 Then,  We will find 95%…

Q: A survey of 800 women shoppers found that 15% of them shop on impulse.  What is the 95% confidence…

A: n = 800p^ = 0.1595% CI for p = ?

Q: An interactive poll found that 397 of 2,391 adults aged 18 or older have at least one tattoo. A.…

A: Given data: Sample size (n) = 2391 x = 397 adults To construct: 1.95 % confidence interval 2.98%…

Q: A survey of 300 women shoppers found that 17% of them shop on impulse. What is the 80% confidence…

A: From the provided information,A survey of 300 women shoppers found that 17% of them shop on impulse.…

Q: In a survey of 2270 adults, 715 say they believe in UFOS. Construct a 95% confidence interval for…

A: x = 715 n = 2270

Q: In a survey of 2298 ​adults, 709 say they believe in UFOs. Construct a 95% confidence interval for…

A:

Q: In a survey of 2745 ​adults, 1477 say they have started paying bills online in the last year.…

A: Given, n= 2745 x=1477 The sample proportion is given by: p^=xn=14772745=0.5381 Also, α=0.99…

Q: In a sample of 1901 patients who underwent a certain type of surgery, 22% experienced complications.…

A:

Q: A survey of 127 patients in a particular hospital determined that 54% of them felt that they were…

A: The sample proportion of patients felt they were receiving excellent care (p-cap) is 0.54. The…

Q: In a survey of 2308 adults, 724 say they believe in UFOS. Construct a 90% confidence interval for…

A: Solution: Let X be the number of adults who believe in UFOs and n be the sample number of adults.…

Q: In a randomly selected group of 650 automobile deaths, 180 were alcohol-related. Construct a 95%…

A:

Q: In a 2008​ survey, people were asked their opinions on astrology​ - whether it was very​ scientific,…

A: We have given that people were asked their opinions on astrology​ - whether it was very​ scientific,…

Q: In a survey of 2291 adults, 743 say they believe in UFOs. Construct a 99% confidence interval for…

A: sample size(n)=2291No. of adults say they believe in UFOs(x)=743

Q: In a random sample of 600 adults, 270 described themselves as vegetarians. Construct a 99%…

A: In a random sample of 600 adults, 270 described themselves as vegetarians.

Q: A marketing survey involves product recognition in New York and California. Of 558 New Yorkers…

A:

Q: A random survey of 36 airline passengers indicates that twelve have never flown before. Find a 95%…

A: We have given that,  Sample size (n) = 36 and favorable cases         (X) = 12 Then,  We Will find…

Q: Construct a 95% confidence interval for the proportion of college students who say they own their…

A: Given : n=410 , X=155  , α=0.05 We want to find the 95% confidence interval for the proportion of…

Q: In a random sample of 230 men , 18 or older , 142 were married. Construct and explain a 90%…

A: Solution: Let X be the number of married men 18 or older and n be the sample number of men. From the…

Q: f 260 employees selected randomly from one company, 18.46% of them commute by carpooling. Construct…

A: Given data, n=260 p=18.46% =0.1846 z-value at 98% confidence is Zc=2.326

Q: Assume a nationwide random survey of 800 adults asked about attitudes toward “alternative medicine”…

A: We have given that,  Sample size (n) = 800 and Favorable cases (X) =448 Then,  We will find the 99%…

Q: A recent survey of 349 people ages 18 to 29 found that 86% of them own a smartphone. Find the 99%…

A: The 99% confidence interval of the population proportion is obtained below as follows:   The formula…

Q: Out of 100 people sampled, 54 had kids. Based on this, construct a 90 % confidence interval for the…

A:

Q: Report the​ 95% confidence interval for the percentage of all young people who earned a high school…

A: From the given information, p-hat value is 0.86 and the sample size n is 1200.

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.