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Elementary Statistics: A Step by Step Approach 8th ed. | 8th Edition | ISBN: 9780073386102 | Authors: Allan G Bluman Professor Emeritus
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Undergraduate Enrollment It has been found that 85.6% of

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QUESTION:

Undergraduate Enrollment It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use a _ 0.05. Source: Time Almanac.

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QUESTION:

Undergraduate Enrollment It has been found that 85.6% of all enrolled college and university students in the United States are undergraduates. A random sample of 500 enrolled college students in a particular state revealed that 420 of them were undergraduates. Is there sufficient evidence to conclude that the proportion differs from the national percentage? Use a _ 0.05. Source: Time Almanac.

ANSWER:


Yes, there is sufficient evidence to conclude that the proportion differs from the national percentage. Specifically, we can use a two proportions z-test to compare two

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