The Metropolitan Aviation Commission is considering setting limits on noise pollution around a local airport. Currently, the noise level produced by a plane taking off, measured from one of the neighborhoods near the airport, follows a normal distribution with an average of 99 decibels and a standard deviation of 5 decibels.

a) What is the probability that the generated noise level is at least 99 decibels? exactly 99 decibels?

b) Suppose there is a regulation that the noise level remains below 104 decibels in that area, what proportion of the takeoffs will be violating the regulation?

c) If the airport administration wants to be able to comply with the regulation at least 95% of the time (only 5% of takeoffs violate the regulation), to what level is it necessary to reduce the average noise level?

d) If 34 of these planes take off during the week, what is the probability that at least 9 of them violate the regulation?

1. The US economy has shrunk 5% due to the impact of the Covid19 pandemic. President Trump has passed a piece of legislation that allows for 5 Trillion dollars to be put back into the economy, through near-zero interest loans for business, and payments of nearly $2,000 for the population. How do you think people will use their $2,000 payment, and why. How do you think industry will use their much larger payments, and why. Comment on short term, and long term application.
2. The government of Thailand has issued a decree to pay a stimulus check to every person who lost a job due to the COVID-19 crisis (and qualified under other criteria). What was the economic consideration under such policy? What would be the main channel for the economic effect? What would the effect be on consumption and saving if instead of such policy the government would have cut taxes?

5) “Carrefour S.A. (Euronext: CA) is a French multinational retailer headquartered in Boulogne Billancourt, France, in the Hauts-de-Seine Department near Paris. Carrefour is one of the largest hypermarket chains in the world (with close to 1,600 hypermarkets at the end of 2015), the fourth largest retail group in the world in terms of revenue (after Wal-Mart, Tesco and Costco), and the second in profit (after Wal-Mart). Carrefour operates in more than 30 countries, in Europe, the Americas, Asia and Africa. Recently, the management of Carrefour reviewed its situation under conditions of stagnant growth and increasing competition from international rivals like Wal-Mart, Tesco, etc. A team of consultants has been hired to evaluate the retail giant’s performance. As one of case team members, what metrics would you use to evaluate Carrefour’s performance?”

Discuss the objective of each of these audit procedures used to test a cash balance. Include in your discussion which PCAOB assertions for the cash account each procedure would support. Be sure to explain how each procedure would cover each of the assertions you believe it would cover for the cash balance and any limitations there might be for the assertion. That is, some procedures can provide more complete evidence to support an assertion than others can. Your answer should discuss any limits of the audit procedures as well.

Part A) Proof of Cash

Part B) Vouch the deposits in transit shown on the client's bank reconciliation to the cutoff bank statement.

Part C) Use of a bank confirmation letter.

Part D) Compare the date shown on the back of the check when the bank cancelled a check with the date of the check for checks dated near the balance sheet date.

Discuss the objective of each of these audit procedures used to test a cash balance.Include in your discussion which PCAOB assertions for the cash account each procedure would support.Be sure to explain how each procedure would cover each of the assertions you believe it would cover for the cash balance and any limitations there might be for the assertion.That is, some procedures can provide more complete evidence to support an assertion than others can.Your answer should discuss any limits of the audit procedures as well.
Part A) Proof of Cash

Part B) Vouch the deposits in transit shown on the client's bank reconciliation to the cutoff bank statement.

Part C) Use of a bank confirmation letter.

Part D) Compare the date shown on the back of the check when the bank cancelled a heck with the date of the check for checks dated near the balance sheet date.

Schedule of Cash Receipts

Rosita Flores owns Rosita's Mexican Restaurant in Tempe, Arizona. Rosita's is an affordable restaurant near campus and several hotels. Rosita accepts cash and checks. Checks are deposited immediately. The bank charges $0.50 per check; the amount per check averages $75. “Bad” checks that Rosita cannot collect make up 3 percent of check revenue.

During a typical month, Rosita's has sales of $45,000. About 80 percent are cash sales. Estimated sales for the next three months are as follows:

Required:

Prepare a schedule of cash receipts for May and June. Round your intermediate computations and final answers to the nearest whole dollar.

(2):

2A. Explain the Taylor rule (be sure to provide the equation and tell what it tells the Fed to do). If the central bank of a country has a policy of inflation targeting, what does this imply about the Taylor rule?

2B. Suppose there is a large contractionary fiscal policy because the government is trying to balance the federal budget when the economy is near full employment. Illustrate this on both an IS-LM graph and an AD-SAS graph, explaining why the curve(s) shift. What would be the effects of this fiscal policy on GDP, interest rates, and inflation? Explain why they change.

2C. Explain what the Taylor rule would tell monetary authorities to do. Illustrate this on both the IS-LM and AD-SAS graphs, explaining why the curve(s) shift. What would be the effects of this monetary policy on GDP, interest rates, and inflation? Explain why they change.

1. Your brother Eric plays hockey and you attend their game. Eric likes to be the goalkeeper, but it depends on who his coach is that day. Coach Peter prefers Eric to not be goalkeeper and will assign Eric to be a goalkeeper with 0.3 probability. Coach Jared will assign Eric to be a goalkeeper 50% of the time. Coach Jared is the main coach attending 8 out of 10 games. A.) Fill in the probability tree or tree diagram to display this scenario. B.) A food truck near the west coast sells the best tacos. 75% of the time, people will choose the tacos vs something else. The cooks need help calculating the chances of the following situations. What is the chance of selling none of the customers the tacos given there are 5 customers in line? Use 5 decimals. What is the probability of selling the tacos to at least one customer of the 5 in line? Use hand calculations and use 5 decimals.

A total of 8 neutrinos, presumably from Supernova 1987A, as observed in an underground detector located in a salt mine near Cleveland.

(a) If the average number of "background" neutrinos observed per day is know to be 2, calculate the probability that 8 or more such background events will be detected in one day.

(b) If the average number of "background" neutrinos observed per day is know to be 2, calculate the probability that 8 or more such background events will be detected in a 10-minute period.

(c) Based on your answers to parts (a) and (b): Should the experimenters (call them Team A) who observe 8 or more events distributed over a one-day period publish their results as a "discovery," or simply attribute these "events" to a fluctuation in the background rate? If Team B observes 8 or more events within a 10-minute period, is this an important discovery, or likely statistical fluctuation?