Answer:

And the best answer on this case would be:
b) m = 4.635
Step-by-step explanation:
Let X the random variable of interest and we know that the confidence interval for the population mean
is given by this formula:

The confidence level on this case is 0.9 and the significance 
The confidence interval calculated on this case is 
The margin of error for this confidence interval is given by:

Since the confidence interval is symmetrical we can estimate the margin of error with the following formula:

Where Upper and Lower represent the bounds for the confidence interval calculated and replacing we got:

And the best answer on this case would be:
b) m = 4.635
Answer:
C
Step-by-step explanation:
Answer: 15, -8
Step-by-step explanation:


One of the three economic questions deals with deciding what goods and services must be produced from available resources.
Here are the Three Main Economic Questions
1) Who consumes the goods and services produced in society?
2) What goods and services must be produced in society?
3) How should goods and services be produced in society?
<span>These questions are very important because it deals on how available resources are allocated to produce essential goods and services demanded by consumer
</span>
Answer:
6c+30
Step-by-step explanation:
Distribute it!