1(V) 10. Finding confidence interval. A poll on a certain policy reports 62% approval with a margin of error of 4%. What is the confidence interval for this poll? 10a. Confindence interval, lower number: Enter with percent sign or use equivalent ratio or decimal. 12. Estimating the sample size. What sample size is needed to give a margin of error of 5% with a 95% con- fidence interval? 1(V) 10b. Confindence interval, higher number: Enter with percent sign or use equivalent ratio or decimal. 12. Sample size: € bility Wo

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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10a. Confindence interval, lower number:
Enter with percent sign or use equivalent ratio or decimal.
르
10. Finding confidence interval. A poll on a certain policy reports 62% approval with a margin of error of
4%. What is the confidence interval for this poll?
10b. Confindence interval, higher number:
Enter with percent sign or use equivalent ratio or decimal.
1(V)
12. Estimating the sample size. What sample size is needed to give a margin of error of 5% with a 95% con-
fidence interval?
\(V)
12. Sample size:
20
過
MAY
20
COO
A
C
O
bility
Wo
(((
Transcribed Image Text:\(V) 10a. Confindence interval, lower number: Enter with percent sign or use equivalent ratio or decimal. 르 10. Finding confidence interval. A poll on a certain policy reports 62% approval with a margin of error of 4%. What is the confidence interval for this poll? 10b. Confindence interval, higher number: Enter with percent sign or use equivalent ratio or decimal. 1(V) 12. Estimating the sample size. What sample size is needed to give a margin of error of 5% with a 95% con- fidence interval? \(V) 12. Sample size: 20 過 MAY 20 COO A C O bility Wo (((
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I am being told that the sample size answer of 384 given to me was incorrect. Is there any way this was miscalculated?

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