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A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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Transcribed Image Text:Giving a test to a group of students, the grades and gender
are summarized below
A
В
C
Total
Male
12
7
22
Female 18 2
14
34
Total
30
21
56
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Let p represent the population proportion of all female
students who received a grade of A on this test.
Use a 99.5% confidence interval to estimate p
decimal places.
four
< p <

Transcribed Image Text:Assume that a sample is used to estimate a population
proportion p. Find the 90% confidence interval for a sample
of size 385 with 64% successes. Enter your answer as a tri-
linear inequality using decimals (not percents) accurate to
three decimal places.
<p<
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