Question 5 options: A high school principal wishes to estimate how well his students are doing in math. Using 40 randomly chosen tests, he finds that 77% of them received a passing grade. Create a 99% confidence interval for the population proportion of passing test scores.

We are 99% confident interval for the population proportion of passing test scores between ( 0.5987  and 0.9413 )

Step-by-step explanation:

Given -

n = 40

Population proportion = = = .77

1 - = 1 - .77 =.23

= 1 - confidence interval = 1 - .99 = .01

= = 2.58

99% confidence interval for the population proportion of passing test scores=

=

=

=

= ( 0.5987 , 0.9413 )

all it means is function 3