Reading proficiency: An educator wants to construct an 80% confidence interval for the proportion of elementary school c
Posted: Wed May 11, 2022 11:05 am
Reading proficiency: An educator wants to
construct an
80%
confidence interval for the proportion of elementary
school children in Colorado who are proficient in reading.
Part: 0 / 3
0 of 3 Parts Complete
Part 1 of 3
(a) The results of a recent statewide test suggested that the
proportion is
0.73
. Using this estimate, what sample size is needed so that the
confidence interval will have a margin of error of
0.05
?
80%
0.05
construct an
80%
confidence interval for the proportion of elementary
school children in Colorado who are proficient in reading.
Part: 0 / 3
0 of 3 Parts Complete
Part 1 of 3
(a) The results of a recent statewide test suggested that the
proportion is
0.73
. Using this estimate, what sample size is needed so that the
confidence interval will have a margin of error of
0.05
?
80%
0.05