The lower limit of the 90% confidence interval for the population proportion p, given that n = 400 and $\hat { p }$ = 0.10, is 0.0247.

Question

Quizplus · Accepted Answer

The lower limit of the 90% confidence interval for the population proportion is calculated using the formula $\hat{p} - Z \times \sqrt{\frac{\hat{p}(1-\hat{p})}{n}}$. For a 90% confidence interval, Z is approximately 1.645. Plugging in the values, the lower limit is not 0.0247.

The Lower Limit of the 90% Confidence Interval for the Population