Question 1 4 pts What is a confidence interval? In general, how are they constructed? BI...

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Question 1 4 pts What is a confidence interval? In general, how are they constructed? BI U A A - Ix E I I HTML Editore IX X -

Answer 1

Answer #1

confidence interval:

Confidence Interval is range of values we are that sure our true value lies in.

How to Construct it:

Identify the sample statistic. statistic (e.g, sample mean, sample proportion) that you will use to estimate a population parameter.

Select the confidence level. (eg., 90%,95%)

Find the margin of error.

Margin of error = Critical value * Standard deviation of statistic

Specify the confidence interval as shown below

Confidence interval = sample statistic + Margin of error

Answer 2

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