Answer:
if no politics why u put category as business xD
Explanation:
The closest to the minimum number of consumers needed to obtain the estimate with the desired precision is (b) 271
Explanation:
When the prior estimate of population proportion is not given , then the formula to find the sample size is given by :-

where E = Margin of error.
z* = Critical z-value.
As per given , we have
E = 5%=0.05
Confidence level = 90%
The critical value of z at 90% is 1.645 (By z-table)
Put all values in the formula , we get
n=0.25(1.645/0.05)²
n=0.25(32.9)²
n=270.6025≈271
Thus, the minimum sample size needed = 271
Hence , the correct answer is 271 .
Answer:
Office building
Explanation:
The formula to compute the return on investment is shown below:
Return on investment = Operating Income ÷ Average Operating Assets
It is a mix of operating income and the average operating assets through the return on investment could be computed
Since the return on investment is already given in the question
And, the higher return on investment is the best one for property use
So the office building has a higher return on investment i.e 13.5% which reflects the best for property usage.
Answer: Her income elasticity of demand for cottage cheese is <em><u>0.3333</u></em> making it a <em><u>normal and necessary</u></em> good.
The income elasticity of demand is given by :

The percentage change in income is given as 60%. We calculate the percentage change in quantity demanded as follows:



Substituting the value above in the income elasticity demand formula we get,

<u>YED = 0.33333</u>
Since the income elasticity is positive, and since Shawna buys more cottage cheese after an increase in income, we can classify this good as a normal good.
Since the income elasticity is between 0 and 1 we can also conclude that cottage cheese is also a essential good or a necessity.