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 reported 51% support for a statewide election with a
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 reported 51% support for a statewide election with a margin of error of 1.62 percentage points.
How many voters should be sampled for a 99% confidence interval? Round up to the nearest whole number.
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Essentials Of College Algebra
Authors: Margaret L Lial, John E Hornsby, David I Schneider, Teresa McGinnis
10th Edition
0321970632, 9780321970633
