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Home Q & A Board Science-Related Homework Help Mathematics Statistics and Probability
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yufeige4 yufeige4
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4 years ago
A marketing company reviewing the length of television commercials monitored a random sample of commercials over several days. They found that a 95% confidence interval for the mean length (in seconds) of commercials aired daily was (23, 27). Which is true?

▸ We're 95% sure that the mean commercial length is between 23 and 27 seconds.

▸ Commercials average between 23 and 27 seconds long on 95% of the days.

▸ 95% of the commercials they checked were between 23 and 27 seconds long.

▸ 95% of all samples would show mean commercial length between 23 and 27 seconds.

▸ 95% of all the commercials aired were between 23 and 27 seconds a day.
Textbook 
Stats: Modeling the World

Stats: Modeling the World


Edition: 4th
Authors:
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sliceofoctopisliceofoctopi
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4 years ago
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yufeige4 Author
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4 years ago
Good timing, thanks!
nsak
wrote...

Yesterday
Just got PERFECT on my quiz
hannahspillett
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2 hours ago
Smart ... Thanks!
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