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Author Question: We have calculated a confidence interval based on a sample of size n = 100. After looking over our ... (Read 338 times)

maychende

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on: Aug 30, 2019

Question 1

When you construct a 90% confidence interval for a population proportion based on a sample, what is it that you are pretty sure is in your interval?
I. 90% of the sample data.
II. 90% of all sample proportions.
III. The population proportion.
◦ III only
◦ I only
◦ None
◦ I and II
◦ II only

Question 2

We have calculated a confidence interval based on a sample of size n = 100. After looking over our work, we realized that the sample size was actually 400. How will the corrected interval compare to the original interval?
◦ The corrected interval will be the same width.
◦ The corrected interval will be twice as wide.
◦ The corrected interval will be four times as wide.
◦ The corrected interval will be one-half as wide.
◦ The corrected interval will be one-fourth as wide.
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Marked as best answer by maychende on Aug 30, 2019

b614102004

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Reply #1 on: Aug 30, 2019
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maychende

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Reply #2 on: Aug 30, 2019
Thanks


b614102004

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Reply #3 on: Aug 30, 2019
Welcome :)


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