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grade 12 · STAT2-004

Interpret a confidence interval

Describe a plausible range for a population parameter without assigning probability to a fixed parameter.

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Try with a hintFresh problem · seed 1694820717

A random sample estimates a population proportion as 41% with margin of error 8 percentage points. Which interpretation is appropriate?

33%41%49%± 8 points

Give me one hint

Build the interval as estimate plus or minus the margin.

Choose an answerExactly 41% of the population has the trait.The probability that this fixed population proportion changes is 8%.Every future sample proportion must lie from 33% to 49%.The interval from 33% to 49% is a plausible range for the population proportion.

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