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  3. (20.37) researchers claim that women speak signifi

(20.37) Researchers claim that women speak significantly more words per day than men. One estimate is...

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Basic Math

(20.37) Researchers claim that women speak significantly morewords per day than men. One estimate is that a woman uses about20,000 words per day while a man uses about 7,000. To investigatesuch claims, one study used a special device to record theconversations of male and female university students over a four-day period. From these recordings, the daily word count of the 20men in the study was determined. Here are their daily wordcounts:

2840310087159262169437784
1058112888110801780913175
89276490814470104434
10056400412632109815260

What value we should remove from observation for applyingt procedures?

A 90% confidence interval (±±10) for the mean number of wordsper day of men at this university isfrom  to  words.

Is there evidence at the 10% level that the mean number of wordsper day of men at this university differs from 7000?

Yes

No

Answer & Explanation Solved by verified expert
4.1 Ratings (610 Votes)
from above90 confidence interval    See Answer
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