The upper limit of the 90% confidence interval for the population proportion p,given that n = 100;and $\hat { P }$
= 0.20 is 0.2658.

Question

The upper limit of the 90% confidence interval for the population proportion p,given that n = 100;and $\hat { P }$ 
= 0.20 is 0.2658.

Quizplus · Accepted Answer

The upper limit of the 90% confidence interval for a population proportion is calculated using the formula: $\hat{P} + Z \times \sqrt{\frac{\hat{P}(1-\hat{P})}{n}}$. For a 90% confidence level, Z is approximately 1.645. Plugging in the values, the upper limit is approximately 0.2658.

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