First add 19 over so that you are left with z/4 by itself. Then to get z by itself multiply both sides by 4.
[67.9 %, 82.1 %] is the 95% confidence interval for the proportion of test-takers answering the question correctly. So we have [67.9 %, 82.1 %] In a random sample of 144 test-takers with 75% answered the question correctly. So the answer in this question is [67.9 %, 82.1 %].
Answer:
The answer is greater than 51
Step-by-step explanation:
- 5.4 rounds to about 5
- 47 + 5 = 52
- 52 > 51
Answer:
a.y=6
b.-1/8
c.1/2
d.2800
e.-8
f.7.71
Step-by-step explanation:
A) prevent the bone wearing each other out where they touch