collocation · academic
confidence interval
UK/ˈkɒnfɪdəns ˈɪntəvəl/US/ˈkɑːnfɪdəns ˈɪntərvəl/CON·fi·dence IN·ter·val
a range of values, derived from sample data, that is likely to contain the true population parameter with a given probability
Examples
“The 95% confidence interval for the mean weight was 2.3 to 3.7 kilograms.”
“A narrow confidence interval indicates more precise estimates.”
“The report included confidence intervals for all subgroup means.”
Band 8 sentence
“The 95% confidence interval around the mean was sufficiently narrow to support a clinically meaningful effect.”
Collocations
- 95% confidence interval
- calculate a confidence interval
- wide/narrow confidence interval
Word family
Common mistakes
margin of error→confidence interval
a confidence interval→confidence interval
Say it for a higher band
5range→6interval→7+confidence interval
Synonyms
range
Easily confused
confidence level
“We set the confidence level at 95% before calculating the confidence interval.”
Related words
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In Science & Research
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