Option B: Use the confidence interval formula above, and the correct formula for proportion, to calculate the 95% confidence interval for any population proportion of your choice. Tell what qualitative variable you chose. Then, write down (invent) the sample size (be sure it is 30 or above) and the sample proportion. Then, calculate the confidence intérval. Remember, you are inventing all the values, so no two posts should look the same.
Option B: Use the confidence interval formula above, and the correct formula for proportion, to calculate the 95% confidence interval for any population proportion of your choice. Tell what qualitative variable you chose. Then, write down (invent) the sample size (be sure it is 30 or above) and the sample proportion. Then, calculate the confidence intérval. Remember, you are inventing all the values, so no two posts should look the same.
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 me with this I am really trying to understand this question. The formula is listed and it needs me create everything else. Can a tutor please give me a great example of how to work through this?
Transcribed Image Text:The general "confidence interval" formula is:
(sample statistic - E) < population parameter < (sample statistic + E)
To calculate a confidence interval, the margin of error (E) must first be calculated.
The margin of error, E, for means is: E
1.96s
where sis the sample standard
Vn
deviation and n is the sample size.
The margin of error, E, for a 95% confidence interval
P(1-p)
for proportions is: E = 1.96,
where p is the sample proportion
and n is the sample size.
Transcribed Image Text:Option B: Use the confidence interval formula above, and the correct formula for
proportion, to calculate the 95% confidence interval for any population
proportion of your choice. Tell what qualitative variable you chose. Then, write
down (invent) the sample size (be sure it is 30 or above) and the sample
proportion. Then, calculate the confidence intérval. Remember, you are inventing
all the values, so no two posts should look the same.
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