Answer:
2694.86957
Step-by-step explanation:
61982/23=2694.86957
I think you do 550 x .16(16%)=88 and each CD sells for 44 so 88/44
Answer= He needs to sell 2 CD's
<em><u>Hello</u></em>
<em><u>A is correct</u></em>
<em><u>B is correct</u></em>
<em><u>C is correct
Good luck!
</u></em>
Answer:
80
Step-by-step explanation:
28×100÷35=80
Answer:
So the answer for this case would be n=2663 rounded up to the nearest integer
Step-by-step explanation:
We have the following info:
margin of error desired
the standard deviation for this case
The margin of error is given by this formula:
(a)
And on this case we have that ME =50 and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
The critical value for 99% of confidence interval now can be founded using the normal distribution. The significance is
. And for this case would be
, replacing into formula (b) we got:
So the answer for this case would be n=2663 rounded up to the nearest integer