Answer:
1568
Step-by-step explanation:
The computation of the minimum sample size is shown below:
Given that
Error E = 11
The population standard deviation
=217
Confidence level 1-α = 95%
Now following formula should be used
n > (Zalpha ÷ 2 × sigma ÷ E)^2
As we know that
Zalpha ÷ 2= 1.96
Now the sample size is
n> (1.96 × 202 ÷ 10)^2
= 1568
2x2x2 = 8
4 x 2 x 2 = 16
16+8 = 24
Answer is A
Its $36 if it is only for his three roommates
and
$27 if it is only for his three roommates w/ Jason