B. interpret the 95% confidence level Some governments have set a safety limit for cadmium in dry vegetables at 0.5 parts per million (ppm). Researchers measured the cadmium levels in a random sample of a certain type of edible mushroom. The accompanying table shows the data obtained by the researchers. Find and interpret a 95% confidence interval for the mean cadmium level of all mushrooms of this type. Assume a population standard deviation of cadmium levels in mushrooms of this type of 0.35 ppm. (Note: The sum of the data is 6.75 ppm.)**Mushroom Cadmium Levels:**- 0.31- 0.70- 0.68- 0.17- 0.83- 1.16- 0.98- 0.26- 0.38- 0.28- 0.66- 0.34The 95% confidence interval is from ___ ppm to ___ ppm. (Round to three decimal places as needed.)**Instructions:**1. Click the links for the table of areas under the standard normal curve if needed for calculations: - [View page 1 of the table of areas under the standard normal curve.](#) - [View page 2 of the table of areas under the standard normal curve.](#)

Given,sample size(n)=12sample mean(x¯)=0.5625population standard…

Answered: Some governments have set a safety…

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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Trainers at a dog training facility find want to know how successful their recently updated program is. They randomly select 250 owners with dogs who went through the program and ask if they consider their dog well- behaved; 100 say yes. If the trainers want a margin of error of around 4%, which of the confidence levels below should they use? O 98% O 90% O 99% O 95% o o
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)
Suppose you want to construct an 80% confidence interval for the proportion of businesses that provide incentives to their workers. Ifyou want a marginof error of 3.5%, how many business entities must you survey?
Through polling, it was estimated that the percent of people who will vote for a particular candidate in an upcoming election is 36.2%. If the margin of error is 3.5, give the confidence interval for the percentage of people who will vote for the candidate in the upcoming election.% to %
The question was asking for 99% confidence interval for pop
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University Food service is interested in the percentage of students on campus who would choose a vegan meal if offered (as an addition to a menu that contained a vegetarian and non-vegetarian option). They receive responses from 45 students and find that 13 of them would at least occasionally purchase that choice. A. Construct a 95% confidence interval. B. Briefly interpret this interval in the context of the problem.
A TV report conducted a survey of 908 people in Phoenix metro area and found that 28% of the population believe that the suns will win the NBA finals next year. In the accompanying dialogue, the reporter states, we are 94% confident that the true proportion of people in Phoenix metro area who believe that the suns will win the NBA finals next year lies between 25% and 31% . What does 28% represent in the report? A. a confidence level B. parameter C. a statistic D. a confidence interval E. a margin of error
Online News In a Harris poll of 2036 adults, 40% said that they prefer to get their news online. Construct a 95% confidence interval estimate of the percentage of all adults who say that they prefer to get their news online. Can we safely say that fewer than 50% of adults prefer to get their news online?
Please answer a, b, and d
A poll asked adults in a certain country whether immigration was a good thing or a bad thing for the country. Out of 1093 respondents, 448 said it was a good thing. a. What percentage of those taking the poll said immigration was a good thing? b. Check the conditions to determine whether you can apply the CLT to find a confidence interval. c. Find a 95% confidence interval for the proportion who believe immigration is a good thing. a % of those taking the poll said immigration was a good thing (Round to one decimal place as needed.)
what is the confidence coefficient of the following confidence levels? 99% Confident? 90% Confident?

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