Confidence Interval Flashcards by Megan H | Brainscape

Q

What is a confidence interval?

A

Confidence interval: an interval that tells us how close x-bar is to the unknown population mean μ
Point estimate +/- margin of error (E)

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Q

Standard deviation vs. standard error

A

Parameter vs. statistic

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Q

What does it mean to be 90% confident?

A

There is a 90% chance of selecting an SRS that capture the population mean

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