Answer:
a) 
And rounded up we have that n=4906
b) For this case since we don't have prior info we need to use as estimatro for the proportion 
And rounded up we have that n=6724
Step-by-step explanation:
We need to remember that the confidence interval for the true proportion is given by :
Part a
The estimated proportion for this case is 
Our interval is at 90% of confidence, and the significance level is given by 
and 
. The critical values for this case are:
The margin of error for the proportion interval is given by this formula:
(a)
The margin of error desired is given 
and we are interested in order to find the value of n, if we solve n from equation (a) we got:
(b)
Replacing we got:
And rounded up we have that n=4906
Part b
For this case since we don't have prior info we need to use as estimatro for the proportion
And rounded up we have that n=6724
Answer:
multiply 15 by 6 and you will get the area of the garage. multiply that by 8 and you will get the cost
Answer:
The answers to the questions are;
B. increases.
C. inelastic; increase.
Step-by-step explanation:
The price elasticity of demand for a linear demand in absolute value curve becomes smaller and smaller as we move downwards of the curve.
When the price elasticity of demand is calculated along a linear demand curve. This is so as for each pair of points at which the price elasticity of demand is calculated, the quantity demanded and the price change are somewhat similar, but as we move towards the top of the demand curve, the high prices and the low quantities shows the increase in demand elasticity.
Also in the inelastic region, as it can be shown by the areas of the rectangles formed by to adjacent price points, increase in price, increases the total revenue.
Answer: B 2
Step-by-step explanation:
If you look at the graph, you can see it goes up every hour by 2.
So therefore your answer will be 2.
Hope this helps!
