In general, when you increase the confidence level for a confidence interval using the same sample proportion and same sample size, does the margin of error increase, decrease or stay the same?  Explain how you made your decision in a sentence.

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

A: GIVEN DATA,  n=971x=554P^=Xn=554971=0.5705CI=0.99α=1-0.99=0.01we have to find out the confidence…

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

A:

Q: A survey asked, "How many tattoos do you currently have on your body?" Of the 1209 males surveyed,…

A:

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: In a survey of 517 music teachers, 403 said that the video games Guitar Hero and Rock Band have a…

A: Solution: Let X be number of music teachers said that the video games Guitar Hero and Rock Band have…

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

A:

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

A: GivenA poll of 500 adults asked to identify .among them 11% choose chocololate pie and the margin of…

Q: Write a sentence demonstrating how the results from the hypothesis test and the confidence interval…

A: From the results, the 90% confidence interval to estimate the mean exam score is (68.6670, 75.7331).

Q: You plan to construct a 90% confidence interval for the proportion of all middle school students who…

A:

Q: You are told that a survey produced a 90% confidence interval for the mean spent on utilities per…

A:

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

A: Given information- We have given that among the 2000 respondents, 13% chose chocolate pie. So, the…

Q: Political survey- A political analyst found that 43% of 300 randomly seleted republican voters feel…

A: It is given that p hat is 0.43 and sample size is 300. The confidence level is 0.95.

Q: To devise effective marketing strategies it is helpful to know the characteristics of your…

A: Givensample size(n)=932x=543p^ =xn=543932=0.5826Confidence level(c)=95%α=1-0.95=0.05α2=0.025critical…

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 a recent poll, 130 people were asked if they liked dogs, and 24% said they did. Find the margin…

A: Given, Total number of people = 130 Probability that a person likes a dog = 0.24 z value at 99%…

Q: According the the U.S. Census bureau, the percentage of Santa Ana residents living in poverty is…

A: Given: p^1=0.177p^2=0.133n1=1200n2=1500

Q: What proportion of your confidence intervals include the true population mean? Is this proportion…

A: Consider a confidence interval of 95%. That is, the proportion that the confidence interval will…

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: 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: How

A: solution :  [ option B is correct 1068 ] given data Margin of Error E=0.03 Significance Level alpha…

Q: The higher the level of significance is, the lower the level of confidence True False

A: We have to find out startment is true or false...

Q: According to a survey of 100 men and 900 women, 21% of men and 28% of women read for fun almost…

A:

Q: Translate the statement into a confidence interval. Approximate the level of confidence. In a survey…

A: The sample size is 1072, 67% say they are willing to get a second or part-time job to pay for their…

Q: A survey showed that 20.2% of the children that participated in the survey like flavor O If the…

A:

Q: How does increasing the sample size affect a confidence interval? A) Increases both the margin of…

A: we know that,margin of error (M.E)=Zα2×σnand confidence interval=X±Zα2×σn

Q: About 74% of MCC students believe they can achieve the American dream and about 65% of Ferris State…

A: The provided data is,

Q: What does the 95% represent in a 95% confidence interval

A: Solution CI=95%

Q: State the equation for the 95% confidence interval?

A: The equation for confidence interval can be stated as: Here x̅ is the sample mean, Zα/2 is the…

Q: A 95% confidence interval is narrower than a 90% confidence interval for the same data set. O True O…

A: We have to find given probability.

Q: n is TRUE about a 99% confidence interval based on a given sample? an answer and submit. For…

A: Given confidence interval is 99% interval. Width for 99% confidence level is more than the width for…

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

A: Given: X= 6, N=28. Therefore, P=XN=628=0.214

Q: What Z score would be used to construct a 90% confidence level? Is it ... a. 1.65 b. 2.33 c.…

A: Confidence Level = 90 Significance Level = α = (100-90)% = 0.1 Critical value = z* = 1.65   […

Q: Angela is trying to figure out the sample size for the data set she wants to collect. She is…

A: The larger the sample size, the less will be the value of standard error. Therefore, the range of…

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: Briefly describe the relationship between confidence interval and hypothesis testing.

A: Briefly describe the relationship between confidence interval and hypothesis testing.   A 95% CI…

Q: Question Emilio wants to estimate the percentage of people who have a financial adviser. He surveys…

A: we have to find all values for given questions.....

Q: Calculate a 95% confidence interval for the proportion of clients that would recommend the company

A: Concept: The sample proportion of the sample of size n can be defined as:  Here, X = Total number…

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

A: Given; x=561n=935The level of significance is;α=1-0.95=0.05 (a) The best point estimate of the…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.