Please help and provide an excel formula if possible. I have added the title which is the only thing missing from the question. I have provided all of the information given for the question.

CHALLENGE ACTIVITY

7.2.1: Confidence intervals for population proportions.

Critical values for quick reference during this activity.

Confidence level	Critical value
0.90	z?=1.645
0.95	z?=1.960
0.99	z?=2.576

A poll for a statewide election has a margin of error of1.64 percentage points.

How many voters should be sampled for a99% confidence interval?

Round up to the nearest whole number.

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