Answer:
(a) 
(b) 
(c) X=4.975 percent
Explanation:
(a) Identify the z-value that represents 5.40 percent
.
Thus, a net interest margin of 5.40 percent stands at 2.5 standard deviations above the average.
From the standard normal distribution table, the area to the left of 2.5 is 0.9938. Hence, the likelihood of a randomly selected U.S. bank achieving a net interest margin greater than 5.40 percent is 1-0.9938=0.0062
(b) The z-value corresponding to 4.40 percent is 
The net interest margin of 4.40 percent is situated at 0.5 standard deviation above the average.
According to the normal distribution table, the area to the left of 0.5 is 0.6915
Thus, the probability of a randomly chosen U.S. bank having a net interest margin below 4.40 percent equals 0.6915
(c) The z-value indicating 95% is 1.65
Substituting 1.65 into the equation enables us to find X.
For a bank that wishes for its net interest margin to fall below that of 95 percent of all U.S. banks, it should aim for a net interest margin of 4.975 percent.
Although I can't create a graph in this dialog box, I will describe the long-run equilibrium for Transnet. In economics, long-run equilibrium is concerned with the timeframe during which resources are still obtainable, as well as the associated costs and production volumes.
Answer:
The opportunity cost for Janet to create a pizza amounts to 0.67 gallons of root beer, while for Megan it is 0.71 gallons of root beer.
Janet possesses an absolute advantage in pizza making, and Janet also has a comparative advantage in this activity.
When it comes to trading, Janet will exchange pizza for root beer. The price of pizza can be represented by the amount of root beer in gallons. To ensure both roommates benefit, the highest trade price for pizza is 0.71 gallons of root beer, while the minimum price allowing for mutual benefit is 0.67 gallons of root beer per pizza.
Explanation:
For Janet, the cost to produce one gallon of root beer is 3/2, which equals 1.5 pizzas.
Janet's cost for making a pizza is calculated as 2/3, resulting in 0.67 gallons of root beer.
As for Megan, her cost to produce a gallon of root beer is 7/5, translating to 1.4 pizzas.
Megan's cost of producing a pizza is 5/7, which equals 0.71 gallons of root beer.
Opportunity costs represent the additional expenses or benefits forfeited when electing one action or investment in place of another option. For instance, Janet can create either 1.5 pizzas or 1 gallon of root beer in a span of 3 hours, but she cannot accomplish both simultaneously; she must make a choice between the two options.
