Which statements are true about estimating the population proportion of employees who prefer the new coffee brand? Check all that apply.
Estimate the population proportion as .
(1 – ) = .
When the margin of error is calculated using the formula E = z* , to the nearest tenth of a percent, the result is %.
The sample size in this problem is students.
Which confidence interval represents the estimated proportion of people willing to pay higher prices for gas?
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 .
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