A poll found that82​%of a random sample of 1093 adults said that they believe in ghosts. a. Determine the margin of error for a​ 99% confiden

Q: A survey of 800 women shoppers found that 17% of them shop on impulse what is the 98% confidence…

A: Sol:- To calculate the 98% confidence interval for the proportion of women shoppers who shop on…

Q: A random sample of 300 college freshmen found that 112 of them own an iPhone.  Find a 95% confidence…

A: Given, Favorable Cases XX = 112112 Sample Size NN = 300300

Q: Of 363 randomly selected medical students, 20 said that they planned to work in a rural community.…

A:

Q: Express the confidence interval (11.8 % , 18.6 % ) in the form of p + ME. %

A:

Q: A poll of 827 students at Alpha State College found that 61% of those polled preferred a quarter…

A: Given that Sample size n = 827 Sample proportion of students who prefer a quarter system = 0.61 The…

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: Construct a 95% confidence interval for the proportion of people who performed any volunteer work…

A: It is given as Favourable cases, x = 517Sample size,, x = 517Confidence level = 95%

Q: A random survey of 495 adults found that 59 had diabetes. Which of the following is a 98% confidence…

A:

Q: The General Social Survey asked 1294 people whether they performed any volunteer work during the…

A: Sample size, n = 1294Number of successes, x = 517Confidence level = 95%

Q: From a simple random sample of 400 of the 1,395 colleges in our population, it was found that…

A: Given : 1395 colleges in our population  Population Size (N) = 1395 400 colleges selected randomly…

Q: An insurance company checks police records on 582 accidents selected random and notes that teenagers…

A: Given data, n=582 x=100  Create a 99.7 % confidence interval for the percentages of all auto…

Q: Lindsey selected a random sample of 25 tomatoes at the farmer's market. The 95% confidence interval…

A: When Lindsey selected a random sample of 25 tomatoes at the farmer's market, she was aiming to…

Q: A random sample of 230 people living in Seattle found that 83 of them had a pet. A random sample of…

A: Solution: Given information: n1= 230 Sample size of people iving in Seattle n2= 172  Sample size of…

Q: In a sample of 100,40 said they preferred Pepsi to Coke. A 95% confidence interval for the…

A:

Q: A recent survey showed that among 850 randomly selected subjects who completed 4 years of college,…

A: I'm providing the solution below please do refer it and let me know if you have any queries…

Q: In a random sample of 850​ Americans, 385 reported that they work two jobs. Which of the following…

A: The known values are, The sample proportion is,

Q: sample of 97 psychology graduates found an average salary of $71 K/year. Assume ?=$14 K/year. Find…

A: Given Z score 90% confidence interval=1.645 Sigma=14 n=97

Q: In a random sample of 41 professional actors, it was found that 15 were extroverts. Find a 99%…

A: The sample proportion=p^=1541confidence level= 99%=0.99Significance level=α= 1-confidence level=…

Q: A random sample of 200 BZU students shows that 80 of them have O blood type. Let p be the BZU…

A: There are totally 200 BZU students are sampled in which 80 of them have blood type. The variable p…

Q: In a sample of 100, 40 said they preferred Pepsi to coke. A 95% confidence interval for the…

A:

Q: A local health centre noted that in a sample of 400 patients, 80 were referred ta hospital. a.…

A: Given, n = 400            x = 80 Therefore, population proportion p^ = 80400 = 0.2 The critical…

Q: In a survey of 2308 ​adults, 718 say they believe in UFOs.   Construct a 95 % confidence interval…

A: Given information- Sample size, n = 2308 We have given that out of 2345 adults 718 says they believe…

Q: A genetic experiment with peas resulted in one sample of offspring that consisted of 437 green peas…

A:

Q: 67% out of 150 pupils from school A passed an exam; 62% of 120 pupils at school B passed. Estimate…

A: Given : n1 = 150 n2 = 120 confidence level,c=0.9

Q: What is the value of Z for this confidence interval?

A: Given,sample size(n)=14795no.of people who said yes=2219no.of people who said no =12576

Q: A recent survey of 54,000 randomly selected adults studied the religious affiliations of Americans.…

A: From the provided information, Sample size (n) = 645 From which 116 said they claimed no religious…

Q: A sample of size 84 was taken from a very large population. Sample statistics, x¯ and s, were used…

A:

Q: 324 out of a simple random sample of 400 students hated their online math course. Find a 99%…

A: Given: Number of students that hated the online math course (y) = 324 Number of students (n) = 400…

Q: A random sample of 2000 car owners in a particular city found 460 car owners who recieved a speeding…

A: Given,n=2000x=460p^ =xnp^ =4602000 =0.231-p^ =1-0.23=0.77α=1-0.95=0.05α2 =0.025z0.025 =1.96

Q: ed 1294 people whether they performed any volunteer work during the past year. A total of 517 people…

A: The sample proportion is computed as follows,

Q: Suppose that a 95% confidence interval for a population p = the population proportion of men who…

A:

Q: In a survey of 2269 adults, 746 say they believe in UFOS. Construct a 90% confidence interval for…

A: From the provided information, Sample size (n) = 2269 746 say they believe in UFOs. Confidence level…

Q: n a random sample of 61 professional actors, it was found that 22 were extroverts. Find a 95%…

A: Given: p^= 2261=0.36 to find 95% confidence interval

Q: Are people who live in Omaha more likely to own a pet than people who live in Chicago? A survey of…

A: Confidence interval excel formula: =CONFIDENCE(alpha,standard_dev,size) The CONFIDENCE function uses…

Q: Construct a 99% confidence interval to estimate the population mean using the data below. x=37 o=11…

A:

Q: в, — 42, s — 8.8, SS,, — 64, п — 19 90% : < B1< 99% : < B1 S

A: Given   beta cap1 =42, s=8.8, SS xx =64 , n = 19

Q: In a random sample of 145 students, we find that 53% have attended a baseball game at some point in…

A: Given,sample size (n)=145sample proportion(p^)=0.53α=1-0.95=0.05α2 =0.025z0.025 =1.96

Q: In a hypothetical study (n=300), 100 patients were on antihypertensive medications. Generate a 95%…

A: The objective of this question is to calculate the 95% confidence interval for the true proportion…

Q: A survey​ asked, "How many tattoos do you currently have on your​ body?" Of the 1202 males​…

A:

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: A research institute asked students if they felt vulnerable to identity theft. In the poll, n=1047,…

A:

Q: Given a 95% confidence interval for p1-p2 as (-0.98, -0.78). What can be concluded?

A: The 95% confidence interval for p1–p2 is (–0.98, –0.78).

Q: Imagine that a researcher appropriately conducts a z test and then calculates a correseponding 95%…

A:

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.