In Exercise 5.29, we see that the distribution of sample proportions of US adults with a college

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In Exercise 5.29, we see that the distribution of sample proportions of US adults with a college degree for random samples of size n = 500 is N(0.275, 0.02). How often will such samples have a proportion, p̂, that is more than 0.30?


Exercise 5.29

According to the US Census Bureau,4 about 27.5% of US adults over the age of 25 have a bachelor’s level (or higher) college degree. For random samples of n = 500 US adults over the age of 25, the sample proportions, p̂, with at least a bachelor’s degree follow a normal distribution with mean 0.275 and standard deviation 0.02. Draw a sketch of this normal distribution and label at least three points on the horizontal axis.

Distribution
The word "distribution" has several meanings in the financial world, most of them pertaining to the payment of assets from a fund, account, or individual security to an investor or beneficiary. Retirement account distributions are among the most...
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Statistics Unlocking The Power Of Data

ISBN: 9780470601877

1st Edition

Authors: Robin H. Lock, Patti Frazer Lock, Kari Lock Morgan, Eric F. Lock, Dennis F. Lock

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