subject
Mathematics, 21.12.2019 06:31 barisege6030

Aschool board wishes to know the current mean reading level of 6th graders throughout a very large school district. past experience shows that the standard deviation of such reading scores is about 2.5. if they wish to be 95% sure that their result is correct to within .4, how large a sample do they need to have?

ansver
Answers: 3

Other questions on the subject: Mathematics

image
Mathematics, 21.06.2019 17:30, queenpaige2015
How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !
Answers: 2
image
Mathematics, 21.06.2019 18:00, LilErvin
He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .
Answers: 1
image
Mathematics, 21.06.2019 18:00, drew3vans34
14. (05.02 lc) what is the value of y in the solution to the following system of equations? (5 points) 2x + y = −4 5x + 3y = −6
Answers: 1
image
Mathematics, 21.06.2019 18:30, josephmartinelli5
What is the prime factorization of 23 ?me with this question
Answers: 1
You know the right answer?
Aschool board wishes to know the current mean reading level of 6th graders throughout a very large s...

Questions in other subjects: