A 90% confidence interval for the population proportion is _______.

a. (0.761, 0.820)

b. (0.125, 0.188)

c. (0.755, 0.826)

d. (0.130, 0.183)

According to a Field Poll, 79% of California adults (actual results are 400 out of 506 surveyed) feel that “education and our schools” is one of the top issues facing California.We wish to construct a 90% confidence interval for the true proportion of California adults who feel that education and the schools is one of the top issues facing California.