Question: A sociologist wants to construct a 98% confidence interval for the proportion of children aged 8-10 living in New York who own a cell phone.

A sociologist wants to construct a 98% confidence interval for the proportion of children aged 8-10 living in New York who own a cell phone.

Estimate the sample size needed if no estimate of p is available. A sample of children aged 8-10 living in New York is needed to obtain a 98%

confidence interval with a margin of error of 0.03 when no estimate of p

A sociologist wants to construct a 98% confidence interval for the

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