Answer:
Confidence Interval is 139.04 - 142.96
Explanation:
The formula for a confidence interval is as follow:
Mean (Average price) +/- z-score x standard deviation / sqrt(n)
Formula Interpretation:
Mean = $141
z-score for 95% confidence interval = 1.96
standard deviation = $4
n = 16 --> sqrt (n) = 4
By using these inputs, we can calculate the confidence interval as follow:
141 +/- 1.96 x (4/4)
Confidence Interval is 139.04 - 142.96
Answer:
c. 0.59
Explanation:
Correlation co-efficient refers to a statistical measure that computes the strength of a relationship between two variables. It does not have a unit like meter per second or months per pound. A correlation co-efficient of 1 means that there is a strong and positive relationship or direct relationship, while a negative correlation means an inverse relationship.
Answer:
$83000
Explanation:
Given: Stadium is fined for $186000
Other parking expense is $163000
Revenue generated by stadium in parking= $432000.
Now, calculating profit:
Profit= 
Profit= 
∴ Profit= $83000
∴ Total profit made for parking that day is $83000.
Answer:
A. Set above equilibrium price
Explanation:
A price ceiling is a mandatory maximum price that a seller is allowed to charge. Generally, a government may impose this in order to protect consumers, especially with regards to the purchase of essential goods.
If the price ceiling was set below the equilibrium price (option c) or if the equilibrium price is above the price ceiling (option b), it will immediately cause a shortage (option d) since the quantity demanded would be higher than the quantity supplied when the price falls. This is because people will be willing to purchase more since it is cheaper but suppliers will be willing to produce less due to lower profits. Hence, options b, c and d are eliminated.
Option A is correct because... (please refer attached diagram):
When the price ceiling is above the equilibrium price, suppliers are willing to supply more since they can make higher profits but consumers will reduce purchasing since it is expensive. However, it does not cause any immediate effect because it takes time for suppliers to be able to produce more and cannot be done immediately unless anticipated in advance. In the long run however, quantity demanded will fall from equilibrium quantity to D1 and quantity supplied will rise from equilibrium quantity to S1. Hence, causing a surplus between D1 - S1 in the long run.