Answer:
0.0310686
Step-by-step explanation:
Answer: D. None of the above
midpoint formula : (x2-x1) , (y2-y1)
(8-11)/2 , (7-9)/2
-1.5 , -1
Searching for the answer right now.
Answer:
The correct answer is "664".
Step-by-step explanation:
The given values are:
Margin of error,
E = 5%
i.e.,
= 0.05
Level of confidence,
C = 99%
i.e.,
= 0.99
Level of significance,
α = 0.01
From the z value table,
Critical z = 2.576
As we know,
The required sample size n will be:
= 
On substituting the values, we get
= 
= 
= 
= 
i.e.,
= 