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Author Question: A recent survey indicates that the proportion of season ticket holders for the Virginia Tech ... (Read 57 times)

caca31

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on: Feb 26, 2023

Question 1

A random sample of size 25 taken from a normally distributed population resulted in a sample standard deviation of 0.93054. A 99% confidence interval for the population variance would be:

◦

(9.886, 45.559).


◦

(3.144, 6.750).


◦

(0.678, 1.449).


◦

(0.456, 2.102).



Question 2

A recent survey indicates that the proportion of season ticket holders for the Virginia Tech football team who renew their seats is approximately 0.80. Using this information, the sample size that is needed to estimate the true proportion who plan to renew their seats using 95% confidence with an error bound of 0.025 is:

◦

689.


◦

697.


◦

810.


◦

984.

Introductory Statistics: A Problem-Solving Approach ¦ Kokoska ¦ 3rd Edition
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Marked as best answer by caca31 on Feb 26, 2023

romyclv

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Reply #1 on: Feb 26, 2023
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caca31

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Reply 2 on: Feb 26, 2023
:D TYSM

marict

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Reply 3 on: Yesterday
Wow, this really help

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