A magazine provided results from a poll of 2000 adults who were asked to identify their favorite pie. Among the 2000 respondents, 13% chose chocolate pie, and the margin of error was given as ±4 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 90%, what is the value of α?

A magazine provided results from a poll of 2000 adults who were asked to identify their favorite pie. Among the 2000 respondents, 13% chose chocolate pie, and the margin of error was given as ±4 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 90%, what is the value of α?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 respondents, 11% chose chocolate pie, and the margin of error was given as ±5 percentage points. Given specific sample data, which confidence interval is wider: the 90% confidence interval or the 80% confidence interval? Why is it wider? Choose the correct answer below. O A. A 90% confidence interval must be wider than an 80% confidence interval because it contains 90% of the true population parameters, while the 80% confidence interval only contains 80% of the true population parameters. O B. A 90% confidence interval must be wider than an 80% confidence interval in order to be more confident that it captures the true value of the population proportion. O C. An 80% confidence interval must be wider than a 90% confidence interval in order to be more confident that it captures the true value of the population proportion. O D. An 80% confidence interval must be wider than a…
sk h A magazine provided results from a poll of 2000 adults who were asked to identify their favorite pie. Among the 2000 e viewe A respondents, 11% chose chocolate pie, and the margin of error was given as ±3 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 95%, what is the value of a? X The value of p is The value of q is The value of n is The value of E is The value of pis Get more help - % vi de 5 6 ME 10 & 7 4 u TE 8 Clear all 9 Check answer 0 P Us Mar 15
Construct the Confidence Interval for the proportion.In a survey of 2480 golfers, 372 said they were left-handed. Construct a 92% confidence interval for the proportion of left-handed golfers from this sample.
Find the margin of error for the 99% confidence interval used to estimate the population proportion. In a clinical test with 1100 subjects, 25% showed improvement from the treatment.
A magazine provided results from a poll of 1500 adults who were asked to identify their favorite pie. Among the 1500 respondents, 13% chose chocolate pie, and the margin of error was given as ±5 percentage points. Given specific sample data, which confidence interval is wider: the 95% confidence interval or the 80% confidence interval? Why is it wider? Choose the correct answer below. OA. An 80% confidence interval must be wider than a 95% confidence interval because it contains 100% -80% = 20% of the true population parameters, while the 95% confidence interval only contains 100%-95% = 5% of the true population parameters. OB. A 95% confidence interval must be wider than an 80% confidence interval in order to be more confident that it captures the true value of the population proportion. OC. A 95% confidence interval must be wider than an 80% confidence interval because it contains 95% of the true population parameters, while the 80% confidence interval only contains 80% of the true…
Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n = 992 and x = 581 who said "yes." Use a 99% confidence level. Click the icon to view a table of z scores. ..... a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) b) Identify the value of the margin of error E. E = (Round to three decimal places as needed.) c) Construct the confidence interval.
Use the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=931 and x=548 who said "yes." Use a 99% confidence level. LOADING... Click the icon to view a table of z scores. b) Identify the value of the margin of error E.
In a recent poll, 450 people were asked if they liked dogs, and 54% said they did. Find the Margin of Error for this poll, at the 95% confidence level. Give your answer to four decimal places if possible.
A proportion confidence interval problem resulted in the following interval as the answer: ( 0.5648 , 0.6048 ). A sample taken yielded the proportion to be 0.5848. What is the margin of error to the nearest percent?
A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=935 and x=561 who said "yes." Use a 95% confidence level.
A survey asked, "How many tattoos do you currently have on your body?" Of the 1217 males surveyed, 179 responded that they had at least one tattoo. Of the 1075 females surveyed, 137 responded that they had at least one tattoo. Construct a 90% confidence interval to judge whether the proportion of males that have at least one tattoo differs significantly from the proportion of females that have at least one tattoo. Interpret the interval. ... Let p₁ represent the proportion of males with tattoos and p2 represent the proportion of females with tattoos. Find the 90% confidence interval for p₁-P2- The lower bound is The upper bound is (Round to three decimal places as needed.) Interpret the interval. OA. There is 90% confidence that the difference of the proportions is in the interval. Conclude that there is a significant difference in the proportion of males and females that have at least one tattoo. OB. There is a 90% probability that the difference of the proportions is in the interval.…
A magazine provided results from a poll of 500 adults who were asked to identify their favorite pie. Among the 500 respondents, 11% chose chocolate pie, and the margin of error was given as ±3 percentage points. Given specific sample data, which confidence interval is wider: the 99% confidence interval or the 80% confidence interval? Why is it wider? Choose the correct answer below. O A. A 99% confidence interval must be wider than an 80% confidence interval because it contains 99% of the true population parameters, while the 80% confidence interval only contains 80% of the true population parameters. O B. An 80% confidence interval must be wider than a 99% confidence interval because it contains 100% - 80% = 20% of the true population parameters, while the 99% confidence interval only contains 100% - 99% = 1% of the true population parameters. OC. A 99% confidence interval must be wider than an 80% confidence interval in order to be more confident that it captures the true value of…