The National Coffee Association reported that 63% of Malaysia adults drink coffee daily. A random sample of 250 Malaysia adults is selected. Find the standard deviation. Find the probability that more than 67% of the sampled adults

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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a. The National Coffee Association reported that 63% of Malaysia adults drink coffee daily. A
random sample of 250 Malaysia adults is selected.

Find the standard deviation.

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

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

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

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

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