Confidence Intervals

Front

What is a Confidence Interval?

Back

A range of values used to estimate the true value of a population parameter, with a specified level of confidence.

Tags

CCSS.HSS.IC.B.4

Front

What does Margin of Error represent?

Back

The amount added and subtracted to the point estimate to create a confidence interval.

Tags

CCSS.HSS.IC.B.4

Front

How is the Point Estimator defined?

Back

A statistic that provides a single value estimate of a population parameter.

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CCSS.6.SP.A.3

Front

What is the formula for calculating Margin of Error?

Back

Margin of Error = Critical Value * Standard Error.

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CCSS.HSS.IC.B.4

Front

What does a wider Confidence Interval indicate?

Back

Greater uncertainty about the population parameter.

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CCSS.HSS.IC.B.4

Front

What is the significance of the Confidence Level?

Back

The probability that the confidence interval contains the true population parameter.

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CCSS.7.SP.C.5

Front

How do you find the midpoint of a Confidence Interval?

Back

Midpoint = (Lower Limit + Upper Limit) / 2.

Tags

CCSS.HSS.IC.B.4

Front

What is the relationship between sample size and Margin of Error?

Back

As sample size increases, the Margin of Error decreases.

Tags

CCSS.HSS.IC.B.4

Front

What is a Point Estimate?

Back

The midpoint of a confidence interval, representing the best estimate of a population parameter.

Tags

CCSS.HSS.IC.B.4

Front

How do you interpret a Confidence Interval of (17.9, 24.1)?

Back

We are confident that the true population parameter lies between 17.9 and 24.1.

Tags

CCSS.HSS.IC.B.4