Question
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
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 of 1.74 percentage points.
How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number.
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Mathematical Excursions
Authors: Richard N Aufmann, , Joanne Lockwood, Richard D Nation, Daniel K Clegg
3rd Edition
1305161793, 9781305161795
