Answer:
11.75 per scarves
Step-by-step explanation:
58.75 ÷ 5 = 11.75
D=110
t=50
r=x
solution
110=50x
x=110/50
x=1hr. 20mins
or
x=1 X 20/60
x=1 1/3 hr
just use this formula and plug in all your values since im suffering trying to type all of this out on a keyboard but use this formula D= if you insert ur points in here you will get distance between each point . hope this helped i think this formula may not be what the question is asking but its the formula to find distance between points so
(a) 404 subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence.
(b) When the confidence level decreases to 95%, the number of subjects decreases from 404 to 234.
<u>Explanation:</u>
Given:
σ = 15.6
Let the number of subjects be n
(a)
When the confidence level is 99%, then z = 2.576
E = 2
We know:
On substituting the value, we get:
Thus, 404 subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence.
(b)
When the confidence level is 95%, then z = 1.96
E = 2
We know:
On substituting the value, we get:
n = 234
Thus, when the confidence level decreases to 95%, the number of subjects decreases from 404 to 234.