Question

number 4?

Suppose (0.7,0.9) is a 95% interval estimate for p, the true population proportion. (give answers to two places past decimal) 1. What was p, the sample proportion? Submit Answer Tries 0/99 2. What was the margin of error? Submit Answer Tries 0/99 3. What was the value of Z*0/2? Submit Answer Tries 0/99 4. If you took 40 random samples, and used them to construct 40 seperate 95% Cls for the population proportion, how many of those 40 Cis would you expect to contain the true proportion? tly like t. roportion Submit Answer Tries 0/99

Answer 1

Since here we construct 40 confidence interval separately with confidence level = 95%.

$\therefore$ we expect about 40*95% = 40*0.95 = 38 of them include the true proportion.

So answer = 38.