The National Coffee Association reported that 63 of U S adults drink coffee daily A random sample of 250 U S adults is selected a Find the mean p b Find the standard deviation p c Find the probability that more than 67 of the sampled adults drink coffee daily d Find the probability that the proport...

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The National Coffee Association reported that 63% of U.S. adults drink coffee daily. A random sample of

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The National Coffee Association reported that 63% of U.S. adults drink coffee daily. A random sample of 250 U.S. adults is selected.

a. Find the mean μp̂.

b. Find the standard deviation σp̂.

c. Find the probability that more than 67% of the sampled adults drink coffee daily.

d. Find the probability that the proportion of the sampled adults who drink coffee daily is between 0.6 and 0.7.

e. Find the probability that less than 62% of the sampled adults drink coffee daily.

f. Would it be unusual if less than 57% of the sampled adults drink coffee daily?

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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Question Posted: May 06, 2024 12:00 PM

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The National Coffee Association reported that 63% of U.S. adults drink coffee daily. A random sample of

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Elementary Statistics

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