ce level Critical value z* = 1.645 z* = 1.960 z* = 2.576 6.qx3zqy7 Jump to level 1 A poll reported 53% support for a statewide election with a margin of error of 2.78 percentage points. How many voters should be sampled for a 90% confidence interval? Round up to the nearest whole number.

MATLAB: An Introduction with Applications
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Critical values for quick reference during this activity.
Confidence level Critical value
z* = 1.645
z* = 1.960
z* = 2.576
0.90
0.95
0.99
469730.3153656.qx3zqy7
Jump to level 1
A poll reported 53% support for a statewide election with a margin of error of
2.78 percentage points.
How many voters should be sampled for a 90% confidence interval? Round up
to the nearest whole number.
Transcribed Image Text:Critical values for quick reference during this activity. Confidence level Critical value z* = 1.645 z* = 1.960 z* = 2.576 0.90 0.95 0.99 469730.3153656.qx3zqy7 Jump to level 1 A poll reported 53% support for a statewide election with a margin of error of 2.78 percentage points. How many voters should be sampled for a 90% confidence interval? Round up to the nearest whole number.
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