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% confidenceinterval 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 90% confidence interval because it contains 100% - 80% = 20% of the true population parameters, while the 90% confidence interval only contains 100% - 90% = 10% of the true population parameters.

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

Answered: A magazine provided results from a poll…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The average monthly electric bill of a random sample of 35 residents of a city is $90 with a standard deviation of $24. Construct a 98% confidence interval for the population mean monthly electric bills of all residents. Interpret your result. a) Is this a z-value or a t-value confidence interval? (Write z or t.) b) What is the z-value or t-value? c) What is the confidence interval? (, ) (Rounded to 2 decimal places.) d) Interpret this result.
Dave is a member of the high school basketball team. Last week, his success rate for shooting a basket was 55%. If he attempted 336 baskets, find the confidence interval for a 99%confidence level. a (44.95%, 65.05%) b (54.9%, 55.1%) c (48.1%, 61.9%) d (50.5%, 59.5%)
Construct a 95% confidence interval for p1 - p2 for a survey that finds 30% of 240 males and 41% of 200 females are opposed to the death penalty. Group of answer choices a.(-0.200, -0.021) b.(-1.532, 1.342) c.(-1.324, 1.512) d.(-0.561, 0.651)
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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 +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? The value of p is The value of a is The value of n is The value of E is The value of p is
A magazine provided results from a poll of 1000 adults who were asked to identify their favorite pie. Among the 1000 respondents, 11% chose chocolate pie, and the margin of error was given as ±5 percentage points. What values do p, q, n, E, and p represent? If the confidence level is 99%, what is the value of a? The value of p is The value of q is The value of n is The value of E is The value of p is
Vlad the Impaler promotes many of his soldiers into generals (don't ask what happened to the past generals). Haley thinks the proportion is about 79%, but wants to estimate the proportion better by sampling soldiers until her margin of error for a 93% Confidence Interval is less than 0.005. How many soldiers should Haley sample?
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Debbie and Ethan are going to construct confidence intervals from the same simple random sample. Debbie's confidence interval will have a 98% confidence interval and Ethan's will have a 95% confidence interval. A. Which confidence interval, if there is a difference will have a larger margin of error? B. Which confidence interval is more likely to cover the population mean, if there is a difference I am using a Ti84 and need to know how to get the answer.
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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 99% confidence interval or the 80% confidence interval? Why is it wider? Choose the correct answer below. O A. 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. B. An 80% confidence interval must be wider than a 99% confidence interval in order to be more confident that it captures the true value of the population proportion. O C. 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…

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