From a random sample of 120 students, 95 rated a case of plagiarism as unethical. Using this information, you computed a confidence interval extending from 0.68 to 0.76 for the population proportion. What is the confidence coefficient of the interval?

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: 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 student reported a 95% confidence interval of [3.21,4.29] What is the mean of the data set?…

A:

Q: Out of 400 people sampled, 48 had kids. Based on this, construct a 95% confidence interval for the…

A: According to the given information, we have Total number of people sampled = 400 and 48 had kids.…

Q: In a study, 132 children of a certain race in a certain city were randomly assigned to one of two…

A: Step 1: Given: For the Preschool group:42 graduated from high school (say x1​)and altogether there…

Q: When constructing a confidence interval, if we construct a confidence interval with a 95% confidence…

A: The general formula for the width of the confidence interval is,

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: A recent year was randomly picked from 1985 to the present. In that year, there were 2051 Hispanic…

A: Given, x1 = 2051 n1 = 12328 x2 = 321 n2 = 2441 α = 0.1       To find, 90% confidence interval for…

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

A:

Q: Out of 400 people sampled, 240 had kids. Based on this, construct a 95% confidence interval for the…

A:

Q: Out of 240 sample students surveyed, 187 students are planning to take classes during the…

A: We have given that the sample size n=240 and favourable cases X=187. Sample proportion p^ = X/n.

Q: In a study, 110 children of a certain race in a certain city were randomly assigned to one of two…

A: From the table contingency table we can see that there are 17+39 = 56 children who did not go to…

Q: In a class of 37 students, 47% of them said that math was their favorite subject. Construct an 85%…

A: n=37,p^=0.47α=0.15 Solution-: Let, X= Number of students said that math was their favorite subject…

Q: You're considering going to graduate school, and you would like to know how many people would…

A: From the provided information Sample size (n) = 29, People who recommend x = 9 The sample proportion…

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

A:

Q: Out of 200 people sampled, 42 had kids. Based on this, construct a 95% confidence interval for the…

A: For 95% confidence intervalα=1-CI=1-0.95=0.05So, zα2=z0.052=z0.025=1.96

Q: m what their favorite color was. 23 people said their favorite color is blue. Using this sample,…

A: Sample proportion is the fraction of successful samples and total number of samples. Here,  Total…

Q: 318 who said yes. What proportion of the students does not read story books? Use 95% confidence…

A: We have given that  Sample size n = 1000 Favorable cases x = 318 Sample proportion p^=x/n =318/1000…

Q: A survey found that out of 900 workers, 150 said they were interrupted by frank phone calls. Find…

A:

Q: Out of 100 people sampled, 35 had kids. Based on this, construct a 95% confidence interval for the…

A:

Q: In a sample of 300 people, 154 said that they watched news on television. Find the 90% confidence…

A: According to the given information in this question We need to find the 90% confidence interval of…

Q: one with a 95% confidence level and the other with a 99.7% confidence level. Which interval is…

A: Confidence interval is probability, which refers that population parameter will fall within set of…

Q: Jane wants to estimate the proportion of students on her campus who eat cauliflower. After surveying…

A: Solution: Given that, Estimate the proportion of students on her campus who eat cauliflower n=20 #…

Q: If n=590 and p=0.93, construct a 90% confidence interval.

A: Express the expression for the confidence interval. C.I=p±Z*p(1-p)n Here, Z* is the critical value .…

Q: A confidence interval was constructed to approximate a population proportion. the interval was from…

A: From the provided information, The confidence interval was from 30.5% to 41.5%.

Q: The 95​% confidence interval for the proportion that express a great deal of confidence or quite a…

A: A poll reported that only 645 out of a total of 2029 adults in a particular region said they had a​…

Q: From a random sample of 120 students, 95 rated a case of plagiarism as unethical. Using this…

A:

Q: Suppose that you have obtained data by taking a random sample from a population and that you intend…

A: 95% percent confidence interval will give more accurate estimate of µ than 99% confidence interval.…

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: Leana is interested in the proportion of people who live in her area who own a dog. She randomly…

A: Suppose p is the population proportion of people who live within one mile of Person L’s home who own…

Q: From a random sample of 120 students, 95 rated a case of plagiarism as unethical. Using this…

A: Compare the length from the formula to the length of given confidence interval.

Q: A research institute poll asked respondents if they felt vulnerable to identify a theft. In the poll…

A: Given,n=1000x=501p^=xnp^=5011000=0.5011-p^=1-0.501=0.499α=1-0.99=0.01α2=0.005Z0.005=2.58    (from…

Q: A 95% confidence interval for the proportion of all statistics students from a large high school…

A: The objective of the question is to understand the relationship between the confidence level and the…

Q: of 100 people sampled, 50 had kids. The best point estimate for p is. The margin of error for a 90%…

A:

Q: A statistics instructor was interested in the proportion of all Kent State students who live on…

A: The proportion that students at Kent State live on campus is obtained below:From the given…

Q: in a sample of 855 bartenders, 48.0% report hearing complaints from patrons about their jobs. If the…

A: From the given information, the sample size (n) is 855. The sample proportion (p) is 48% that is p =…

Q: From a random sample of 120 students, 95 rated a case of plagiarism as unethical. Using this…

A:

Q: Find the margin of error for the​ 99% confidence interval used to estimate the population…

A: p^ : Sample Proportion 35% of the patients showed improvement. So, probability that a patient shows…

Q: In a random sample of 250 high school students, it was found that 85.2% (213) of them later…

A:

Q: Find a 95% confidence interval for the true population proportion.   In a poll of 1079 college…

A: The value of z at 95% confidence level is 1.96, which can be obtained by using the standard normal…

Q: A poll commissioned by the Center on Addiction and Substance Abuse at Columbia University found that…

A: Given that, X = 1340 N = 2000 98% confidence level

Q: You are comparing men and women on hours spent watching TV. You pick a sample of 12 men and 14 women…

A:

Q: A 95% confidence interval is constructed in order to estimate the proportion of adults who own an…

A:

Q: In a recent survey of 1003 students, 977 of them would like to recommend www.helpyourmath.com to…

A: According to the given information, we have Confidence level = 90% Total number of students = 1003

Q: n a town in nj we take a random sample of 100 residents. It turns out that 25% of the adult…

A: Given Data: p=0.25 n=100   z-value for 90% Confidence level=1.645