Question

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.

1) A point estimate for the true population proportion is:

(Write as a decimal)

2) The margin of error for a 90% confidence level is:

(Write as a decimal rounded to the 4th decimal place)

3) A 90% confidence interval for the population proportion is:

(  ,  )

(Write as a decimal rounded to the 3rd decimal place.)

Answer 1