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

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

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

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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