Which confidence interval represents the estimated proportion of people willing to pay higher prices for gas?
In the formula n = (1 – ) • , the value of (1 – ) is .
When n is calculated, the result after rounding is .
When the margin of error is calculated using the formula E = z* , to the nearest tenth of a percent, the result is %.
If the same confidence interval is used, and the same value for is found for both samples, Margie’s margin of error will be David’s margin of error.
The value of 3% represents the .
The sample size in this problem is students.
Estimate the population proportion as .
(1 – ) = .
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