One factor in determining the size of a sample is the degree of confidence selected. This is usually 0.95 or 0.99, but it may be any degree of confidence you wish to specify O True O False

Q: In a recent poll, 360 people were asked if they liked dogs, and 92% said they did. Find the margin…

A:

Q: a recent poll, 550 people were asked if they liked dogs, and 44% said they did. Find the margin of…

A: We have given that  Sample size n= 550 Sample proportion p^= 0.44

Q: In a recent poll, 540 people were asked if they liked dogs, and 10% said they did. Find the margin…

A: We have to calculate 95% confidence level margin of error for single proportion.

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: In this question, It has been given that Margin of error = 0.05 and level of significance = 0.005.…

Q: Use the sample data and confidence level given below to complete parts  (c).   A research institute…

A: It is given that, the number of respondents said yes (x) is 587 and the sample size (n) is 912.  The…

Q: You and a friend are interested in knowing if two groups have the same proportion of smokers. The…

A: 1. In the given situation, the proportions of two groups are comparing. The suitable test for…

Q: In a recent poll, 450 people were asked if they liked dogs, and 48% said they did. Find the margin…

A: Total number of people = 450 Given that in a recent poll, 450 people were asked if they liked dogs,…

Q: In a recent poll, 360 people were asked if they liked dogs, and 74% said they did. Find the margin…

A: Critical value: The value of α is 0.10 for 90% confidence level. Using excel formula…

Q: In a recent poll, 300 people were asked if they liked dogs, and 89% said they did. Find the margin…

A: Solution: From the given information, p-hat=0.89 and n=300.

Q: In a recent poll, 260 people were asked if they liked dogs, and 13% said they did. Find the margin…

A:

Q: A sociologist plans to conduct a survey to estimate the percentage of adults who believe in…

A: Given thatMargin of error (E) = 4% = 0.04Significance level (α) = 1 - 0.99 = 0.01

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: It is given that margin of error (E) is 0.08 and the confidence level is 0.90.

Q: A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie.…

A: Solution

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

A: p^=Xn X=593,n=1025 Zcritical=Zα/2=1.65 at α=0.10(1-α)% CI for p…

Q: e presidential election process reports many polls. You survey 40 college students and find that 70%…

A: Given data, n=40 p=70%=0.70 Find the 95% confidence interval to estimate the population proportion…

Q: Use the sample data and confidence level given below to complete parts  (b)   A research institute…

A: Margin of error can be calculated as shown below.

Q: In a survey of 323 adults over 50, 60% said they were taking vitamin supplements. Find the margin of…

A:

Q: In a recent poll, 500 people were asked if they liked dogs, and 54% said they did. Find the margin…

A: Here we need to find the Margin of error corresponding to 95% confidence level.

Q: 7. A study of the ability of individuals to walk in a straight line reported the accompanying data…

A: Given that - From the given data,Mean = x̅ = 0.9245standard deviation = S = 0.08095n = 20degree of…

Q: In a recent poll, 580 people were asked if they liked dogs, and 9% said they did. Find the margin of…

A: Given:n=580Where:E is the margin of error. is the z-score that corresponds to the desired confidence…

Q: In a recent poll, 150 people were asked if they liked dogs, and 88% said they did. Find the margin…

A: Given Sample size=n=150 Sample proportion=p^=0.88 Confidence interval=99%

Q: In a recent poll, 600 people were asked if they liked dogs, and 58% said they did. Find the margin…

A:

Q: In a recent poll, 490 people were asked if they liked dogs, and 5% said they did. Find the margin of…

A: given data n = 490p^ = 0.0590% ci, E = ?

Q: If you are building a 90%, 95%, and 99% confidence interval for the same statistics, which will be…

A: GivenBuilding 90% , 95% and 99% confidence interval for the same statistics

Q: In the days before any election, it is best to decrease the margin of error of a poll to have a…

A:

Q: In a recent poll, 240 people were asked if they liked dogs, and 32% said they did. Find the margin…

A: Find z-critical value:…

Q: In a recent polI, 200 people were asked if they liked dogs, and 15% said they did. Find the margin…

A: From the provided information, Sample size (n) = 200 15% people said they like dogs that is p̂ =…

Q: Answer both please Determine the confidence coefficient for the following. a.) 99% confident b.)…

A: Here we need to find the value of the corresponding confidence coefficient.

Q: A magazine provided results from a poll of 2000 adults who were asked to identify their favorite…

A: It is given that among the 2000 respondents, 14% chose chocolate pie, and the margin of error was…

Q: In a recent poll, 300 people were asked if they liked dogs, and 73% said they did. Find the margin…

A:

Q: n a recent poll, 330 people were asked if they liked dogs, and 30% said they did. Find the margin of…

A: given data, n=330p=0.30CI=0.99α=1-0.99=0.01ME=?

Q: Compare the results to those obtained in part (a). How does increasing the level of confidence…

A: simple random sample of size n is drawn. The sample mean is found to be 18.4   sample standard…

Q: In a recent poll, 260 people were asked if they liked dogs, and 67% said they did. Find the margin…

A: Given: p = 67%=0.67 n= 260 The value of z at a 90% confidence level is 1.645, which can be found by…

Q: n a recent poll, 230 people were asked if they liked dogs, and 70% said they did. Find the margin of…

A: It is given that the n = 230 and p hat is 0.70.

Q: In a recent poll, 260 people were asked if they liked dogs, and 32% said they did. Find the margin…

A: Find z-critical value:…

Q: In a recent poll, 250 people were asked if they liked dogs, and 21% said they did. Find the margin…

A: Sample size=n=250P=21%=0.2195% of confidence interval is

Q: A magazine provided results from a poll of 1000 adults who were asked to identify their favorite…

A: Given Information :  A magazine provided results from a poll of 1000 adults who were asked to…

Q: A political candidate has asked you to conduct a poll to determine what percentage of people support…

A: Given data,E=4%=0.04letp=0.5z value at 95% confidence is Zc=1.96n=?

Q: In a recent poll, 170 people were asked if they liked dogs, and 24% said they did. Find the margin…

A:

Q: A research survey is commissioned to estimate the proportion of UK people who have traveled to…

A: Obtain the large sample size at 95% confidence level.   The large sample size is obtained below as…