Giving a test to a group of students, the grades and gende are summarized below A В C Total Male 8 13 27 Female 11 14 3 28 Total 19 27 9. 55 Let p represent the proportion of all male students who would receive a grade of A on this test. Use a 99.5% confidence interval to estimate p to three decimal places

MATLAB: An Introduction with Applications
6th Edition
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Author:Amos Gilat
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Chapter1: Starting With Matlab
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Giving a test to a group of students, the grades and gender
are summarized below
A B
C
Total
Male
8
13
27
Female
11
14
3
28
Total
19
27
9.
55
Let p represent the proportion of all male students who
would receive a grade of A on this test. Use a 99.5%
confidence interval to estimate p to three decimal places.
<p <
Transcribed Image Text:Giving a test to a group of students, the grades and gender are summarized below A B C Total Male 8 13 27 Female 11 14 3 28 Total 19 27 9. 55 Let p represent the proportion of all male students who would receive a grade of A on this test. Use a 99.5% confidence interval to estimate p to three decimal places. <p <
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Step 1

Solution:

Given information:

n= 55  Total number of sudents 

x = 8  male students who receive grade A. 

p^=xn=855= 0.145455   Sample proportion of male students who receive grade A. 

 

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