Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 13 7 12 32 Female 5 8 15 28 Total 18 15 27 60 Let p represent the population proportion of all female students who received a grade of A on this test. Use a 80% confidence interval to estimate p to 5 decimal places if possible.

Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 13 7 12 32 Female 5 8 15 28 Total 18 15 27 60 Let p represent the population proportion of all female students who received a grade of A on this test. Use a 80% confidence interval to estimate p to 5 decimal places if possible.

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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Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 24 48 34 106 Female 40 26 22 88 Total 64 74 56 194 Use the table above to get a 95% confidence interval for the percentage of all female students who would receive a grade of B on this test.Enter your answers below using decimals. < P <
Giving a test to a group of students, the grades and gender are summarized below A B Total Male 17 14 37 Female 15 Total 32 27 21 11 64 Let p represent the proportion of all male students who would receive a grade of B on this test. Use a 855 confidence interval to estimatep to three decimal places. ule
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 29 20 34 83 Female 43 26 25 94 Total 72 46 59 177 Use the table above to get a 90% confidence interval for the percentage of all female students who would receive a grade of A on this test.Enter your answers below using decimals. < P <
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.)
Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 9 7 5 21 Female 3 4 15 22 Total 12 11 20 43 Let p represent the population proportion of all male students who received a grade of B on this test. Use a 85% confidence interval to estimate p to four decimal places if possible.
You are interested in finding a 90% confidence interval for the average commute that non-residential students have to their college. The data below show the number of commute miles for 14 randomly selected non-residential college students. Round answers to 3 decimal places where possible. 5 8 11 10 12 19 24 6 26 10 26 10 26 15 a. To compute the confidence interval use a distribution. b. With 90% confidence the population mean commute for non-residential college students is between and miles. c. If many groups of 14 randomly selected non-residential college students are surveyed, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of commute miles and about percent will not contain the true population mean number of commute miles.
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You are interested in finding a 90% confidence interval for the mean number of visits for physical therapy patients. The data below show the number of visits for 13 randomly selected physical therapy patients. Round answers to 3 decimal places where possible. 15 26 28 28 14 11 18 20 5 19 15 14 19 a. To compute the confidence interval use a Correct distribution. b. With 90% confidence the population mean number of visits per physical therapy patient is between and visits. c. If many groups of 13 randomly selected physical therapy patients are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean number of visits per patient and about percent will not contain the true population mean number of visits per
The figure to the right shows the results of a survey in which 2000 college graduates from the year 2016 were asked questions about employment. Construct 99% confidence intervals for the population proportion of college students who gave each response. Employment College students' responses to questions about employment Expect to stay at first employer for 3 or more years Completed an apprenticeship or intemship 70% 66% Employed in field of study 61% Feel underemployed 46% Prefer to work for a large company 15% The 99% confidence interval for the proportion of college students that expect to stay at their first employer for 3 or more years is (Round to three decimal places as needed.)
Construct a confidence interval for p, - p2 at the given level of confidence. X1 = 35, n, = 254, x2 = 31, n2 = 300, 90% confidence %3D ... The researchers are % confident the difference between the two population proportions, p, - P2, is between and (Use ascending order. Type an integer or decimal rounded to three decimal places as needed.)