A 95% CI for p is (0.30, 0.50).
The "p" in this interval refers to:
- A
The confidence level.
- B
The sample proportion (statistic).
- C
The p-value of the test.
- Dcheck_circle
The unknown population proportion (parameter).
Explanation
A CI estimates a parameter (here the population proportion). p̂ is the statistic used for the estimate.