Question

You want to obtain a sample to estimate a population proportion. Based on previous evidence, you believe the population proportion is approximately p = 19%. You would like to be 95% confident that your esimate is within 5% of the true population proportion. How large of a sample size is required?

Answer #1

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately p = 0.33. You would like to be 95% confident that
your esimate is within 2.5% of the true population proportion. How
large of a sample size is required?
n =

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately ˆp=63%p^=63%. You would like to be 95% confident
that your esimate is within 3% of the true population proportion.
How large of a sample size is required?

You want to obtain a sample to estimate a population
proportion. Based on previous evidence, you believe the population
proportion is approximately p?=11%. You would like to be 99.9%
confident that your esimate is within 5% of the true population
proportion. How large of a sample size is required?

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately p = 0.14. You would like to be 99% confident that
your esimate is within 2.5% of the true population proportion. How
large of a sample size is required?

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately p ∗ = 12 % p∗=12% . You would like to be 99.5%
confident that your esimate is within 2% of the true population
proportion. How large of a sample size is required?

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately p∗=87%. You would like to be 99.9% confident that
your esimate is within 3% of the true population proportion. How
large of a sample size is required?
n =

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately p∗=32%. You would like to be 99% confident that
your esimate is within 4% of the true population proportion. How
large of a sample size is required?
n =

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately ˆ p = 68 % . You would like to be 99% confident
that your esimate is within 0.1% of the true population proportion.
How large of a sample size is required?
n=

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately ˆ p (p-hat) = 77%`. You would like to be 95%
confident that your esimate is within 2.5% of the true population
proportion. How large of a sample size is required? n = Do not
round until your final answer.

You want to obtain a sample to estimate a population proportion.
Based on previous evidence, you believe the population proportion
is approximately ˆ p = 24 % . You would like to be 99% confident
that your esimate is within 0.5% of the true population proportion.
How large of a sample size is required? Show your work .

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