Find sample size for a target margin of error - exam scenario
A transport team wants margin of error at most 4 using \(\sigma=17\) and \(z=1.96\). Calculate the required sample-size expression before rounding up. Confirm the context meaning before entering the value. Enter the requested value and choose the interpretation that matches the result.
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Worked practice: result and interpretation
Calculate the requested result first, then choose the interpretation that follows from it.