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eBook The population proportion is 0.50. What is the probability that a sample proportion will be within :0.05 of the population proportion for each of the following sample sizes? Round your answers to 4 decimal places. Use a-table. a. n-100 с.n.. 500 d. 1,000 e.What is the advantage of a larger sample size? With a larger sample, there higher probability will be within +0.05 of the population proportion p.
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Answer #1

Here one needs to understand ,

the standard deviation is calculated as

sigma=fk where P=population proportion

population propOY tion = P 0.50 Let sample propornion be dlenoted bj Standard devioton reqred is calculated as p- Populahon proportion Test statisH c2 srore is defined as 1: t-r- gample proportion P Population proporton Nn( ) Now, њ given that the sample proportion will be wimin -。.05 of the population propor tion This is the eqired condition Yow loo, we calculote the probability Dividing by where -、! 0:25 Heren: 0 , -0.68268 z are

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