Question

A 90% confidence interval for a proportion is found to be (0.62, 0.68). What is the sample proportion?

A.
0.64
B.
0.65
C.
0.68
D.
0.66

Answer 1

Answer:B. 0.65

Explanation:

Answer 2

B. 0.65

Explanation:

Sample proportion is the point estimate of the population proportion which is at the centre of the interval

(0.62+0.68)/2

1.30/2

0.65