(d) Use the combined data of 80 students, construct a 95% confidence interval estimate of the population proportion of students can pass the aptitude test.
(d) Use the combined data of 80 students, construct a 95% confidence interval estimate of the population proportion of students can pass the aptitude test.
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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Please help with (D)

Transcribed Image Text:Question
The education department has conducted a survey to review student's language ability. A sample of 40 boys
and 40 girls have been selected randomly selected for an aptitude test.
The test result is that 28 boys pass
the test, and 32 girls pass the test.
(a) Give a point estimate of the population proportion of boys can pass the aptitude test.
(b) Give a point estimate of the population proportion of girls can pass the aptitude test.
(c) Use the combined data of 80 students, give a point estimate of the population proportion of students can
pass the aptitude test.
(d) Use the combined data of 80 students, construct a 95% confidence interval estimate of the population
proportion of students can pass the aptitude test.
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