What is the standard deviation of the total time

Assignment Help Business Economics
Reference no: EM13996792

The process of being served at a bank consists of two parts—the time waiting in line and the time it takes to be served by the teller. Suppose that the time waiting in line (X) has an expected value of 3.25 minutes, with a standard deviation of 1.06 minutes, the time it takes to be served by the teller (Y) has an expected value of 6.1003865 minutes, with a standard deviation of 1.98 minutes, and the correlation coefficient between the time waiting in line and the time it takes to be served is 0.55. What is the standard deviation of the total time (X+Y) it takes to be served at the bank?

Reference no: EM13996792

Questions Cloud

The total revenue functions for the firm : Q=55-0.5PGiven the firm’s demand function Q=55-0.5P (where P = price and Q = rate of output), and the total cost function TC=20+Q+0.2Q^2 where TC = total cost, determine a. The total revenue functions for the firm.
In order to restructure some of its debt : In order to restructure some of its debt, General Motors decided to pay off one of its short-term loans. If the company borrowed the money 1 year ago at an interest rate of 8% per year and the total cost of repaying the loan was $82 million, what was..
Manufactures general-purpose transducers : A company that manufactures general-purpose transducers invested $2 million 4 years ago in high-yield junk bonds. If the bonds are now worth $2.8 million, what rate of return per year did the company make on the basis of (a) simple interest and (b) c..
What is the variance of the profit of the company : The revenue (X) from the sales of a company has an expected value of $7,403, with a standard deviation of $551 while the cost (Y) has an expected value of $4,566, with a standard deviation of $348. The covariance between the revenue and cost is 1,434..
What is the standard deviation of the total time : The process of being served at a bank consists of two parts—the time waiting in line and the time it takes to be served by the teller. What is the standard deviation of the total time (X+Y) it takes to be served at the bank?
Price elasticity of demand between points and isinelastic : Suppose the price of bippitybops is currently $120 per bippitybop, shown as point A on the initial graph. Because the price elasticity of demand between points A and B isinelastic , a $15-per-bippitybop decrease in price will lead to NO CHANGE? in to..
Acting on behalf of the interests of the home constituents : "The role members of Congress serve in acting on behalf of the interests of the home constituents and nation regardless of whether constituents would immediately approve of the members' decisions" If you were a legislator and had to decide whether to..
Many of the proponents of price ceilings argue : Many of the proponents of price ceilings argue that government-mandated maximum prices, such as rent controls in New York City, simply reduce producers' profits and do not affect the quantity supplied of a good on the market. If the relevant supply a..
Produce an outward shift of production possibilities curve : Which of the following would NOT produce an outward shift of the production possibilities curve?

Reviews

Write a Review

Business Economics Questions & Answers

  Consider the market game-an incumbent firm-called firm

Consider the following market game: An incumbent firm, called firm 3, is already in an industry. Two potential entrants, called firms 1 and 2, can each enter the industry by paying the entry cost of 10. First, firm 1 decides whether to enter or not.

  Reason for the decrease in the unemployment rate

The unemployment rate in November 2011 came down to 8.6% from 9.0% in the previous month. What could have been a possible reason for the decrease in the unemployment rate even when many new were not created in the economy at that time?

  Derive each fishermans best response function

Two identical fishermen, Jill and Kevin, fish from the same lake. Since they are only two small producers, they cannot effect the price paid for their fish (P = 100), but they do influence each other’s costs. Write down the profit function for each f..

  Adopting a dividend policy

If the company has not paid dividends, discuss why think the company is not paying dividends or whether they should consider adopting a dividend policy.

  How does this event affect the demand for money

You put money into an account that earns a 5 percent nominal interest rate. Theinflation rate is 3 percent, and your marginal tax rate is 20 percent. What is your after-tax real rate of interest? Suppose that changes in bank regulations expand the av..

  Which job affords you the highest purchasing power

If you have been offered $137,000 for a job in Los Angeles and $117,000 for a similar job in Dallas, which job affords you the highest purchasing power of the bundle of goods in the price index.

  What are the costs of operating the clinic

St. Mary's Hospital owns a prime piece of real estate in the center of town. There is a small shopping center on this piece of land. Rents for each store are $4,000 per month. It hires three nurses monthly at $3,000 each. Furnishings are included in ..

  Higher rice elasticity of demand-bread or lettuce

In the spring of 2002, lettuce price doubled from about $1.5 to $3 per head. The reaction of one consumer was quoted in newspaper article; "I will not buy lettuce when it is a $3 a head" she said, adding that other green vegetable can fill in for let..

  Qwould you mind assisting with these few questions as well

q.would you mind assisting with these few questions as well since you did an awesome job the first time?1. duracell ltd

  Calculate the elasticity of demand for each market

Suppose a monopolist sells in two distinct markets. The demand for the first mar- ket is given by P1 = 240 − 2Q1 , where Q1 is the quantity demanded and P1 is the price paid by the first group. How much does the monopoly supply in each market and wha..

  Qsuppose the demand function for corn is qd10-2 and supply

q.suppose the demand function for corn is qd10-2 and supply function is qs3p-5. the government is concerned that the

  By what percentage did the cpi increase between 2012 & 2013

Calculate the value of the market basket in 2012 and in 2013. Using your answers to part (a) and letting 2012 be the base year, calculate the value of the CPI for 2013. By what percentage did the CPI increase between 2012 and 2013? Notice that neithe..

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd