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The following is a 90% confidence interval for p: (.26,
Chapter 6, Problem 63E(choose chapter or problem)
QUESTION:
The following is a 90% confidence interval for p: (.26, .54). How large was the sample used to construct this interval?
Questions & Answers
QUESTION:
The following is a 90% confidence interval for p: (.26, .54). How large was the sample used to construct this interval?
ANSWER:Solution :
Step 1 of 1:
Our goal is :
We need to find how large was the sample used to construct this interval.
Given a 90% confidence interval for p:(0.26, 0.54).
Now we have to find how large was the sample used to construct this interval.
We know that level of significance
Then,
Using the normal distr