Answer:
a) 
b) The should sample at least 293 small claims.
Step-by-step explanation:
We have that to find our 
level, that is the subtraction of 1 by the confidence interval divided by 2. So:
Now, we have to find z in the Ztable as such z has a pvalue of 
.
So it is z with a pvalue of 
, so , which means that the answer of question a is z = 1.645.
Now, find the margin of error M as such
In which 
is the standard deviation of the population and n is the size of the sample.
(b) If the group wants their estimate to have a maximum error of $12, how many small claims should they sample?
They should sample at least n small claims, in which n is found when
. So
The should sample at least 293 small claims.
Answer:It doesn't make sense when I try to do it,I even tried a calculator
Step-by-step explanation: IDK?
Do 910*70 = 63700 The actual answer is 60,836 so it is pretty close
Answer:
24
Step-by-step explanation:
Check attachment for explanation... hope it helps :)
Answer:
I think its c but im not sure
