Giving a test to a group of students, the grades and gender are summarized belowAC.TotalMale6.141939Female161028Total22242167Let p represent the proportion of all male students who would receive a grade of B on this test. Use a 98%confidence interval to estimatep to three decimal places.< p <Submit Question&大3478.9.ety6

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Answered: Giving a test to a group of students,…

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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you want to find out the percent of people who use an iPhone so you survey 120 random adults of whom 57 use an iPhone. what is the 95% confidence interval for P the put portion of all adults who use iPhone
Out of 400 people sampled, 336 had kids. Based on this, construct a 95% confidence interval for the true population proportion of people with kids.Give your answers as decimals, to three places
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The figure to the right shows the results of a survey in which 1500 college graduates from the year 2016 were asked questions about employment. Employment College students' responses to questions about employment Construct 99% confidence intervals for the population proportion of college students who gave each response. Expect to stay at firet employer for 3 or more years 73% Comploted an apprenticeship or intemship 67% Employed in field of study 61% Foel underemployed 53% Prefer to work for a large company 17% The 99% confidence interval for the proportion of college students that expect to stay at their first émployer for 3 or more years is ( D. (Round to three decimal places as needed.)
You are interested in finding a 95% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 12 randomly selected physical therapy patients. Round answers to 3 decimal places where possible.
In a sample of 500 Canadians, it was found that 400 people preferred apple products. In a sample of 700 Americans it was found that 600 preferred apple products. Is the proportion Canadians who prefer apple products less than Americans. 1. Construct 95% confidence interval for difference of proportions. 2. From the confidence interval, do you think that the proportion of Canadians who prefer apple products is different from Americans.
Given below are the sodium contents in milligrams for seven brands of hot dogs rated as “very good” by Consumer Reports. Find a 99.9% confidence interval for the true mean amount of sodium for “very good” hotdogs. 400 470 350 365 270 550 530
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Need help of the Find the Confidence Interval section
A survey of 41 students in grades 4 through 12 found 63% have classroom Wi-Fi access. Find the 99% confidence interval of the population proportion. .
Researchers studied the mean egg length (in millimeters) for a bird population. After taking a random sample of eggs, they obtained a 95% confidence interval of (45,60). What is the value of the margin of error? Choose the correct answer below. A. 15 mm B. 52.5 mm O c. 7.5 mm O D. 1.96

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