Question
The WB reports that 2% of the US households live on less than $2 per day. A policymaker claims that this number is misleading because
The WB reports that 2% of the US households live on less than $2 per day. A policymaker claims that this number is misleading because of variation from state to state and rural to urban. To investigate this, they want to take a random sample of households in Atlanta to compare with the national proportion.
What sample size should be collected to ensure that conditions for inference using the Central Limit Theorem are satisfied? Is 30 correct?
What sample size shouldbe collected to ensure that a 95% confidence interval will have a margin of error less than or equal to 1%?
Is 753 correct?
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