Question
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 3.41 percentage
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 3.41 percentage points. How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number.
___Voters?
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A Graphical Approach To College Algebra
Authors: John E Hornsby, Gary K Rockswold, Margaret K Lial
5th Edition
0321908260, 9780321908261
