What is the size of the sampling error

Assignment Help Econometrics
Reference no: EM13185474

Consider the following sample of nine wait times measured in seconds at a drive through coffee shop. The population mean and standard deviation are 100 and 20 respectively.

 125 95 66 116 99 91 102 51 110

a. What is the size of the sampling error in this case?

b.  What is the probability that the average wait time would be less than 80 seconds?

c.  What is the probability that the average wait time would be more than 109 seconds?

d.  What is the probability that the avrg wait time would be btwn 90 and 95 seconds?

e. What is the probability that a customer waits more than 65 seconds?

f. Calculate the sample st deviation.

Reference no: EM13185474

Questions Cloud

What is probability to receive 8 orders in next hour : An office receives 20 faxed orders every two hours. (1) What is the probability that it will receive 8 orders in the next hour (2) What is the probability that an order will be faxed within the next 9 minutes (3) What is the probabilit..
Explain what mass of solid pbcl2 is formed : What mass of solid PbCl2(278.10 g/mol) is formed when 200 mL of .125 M Pb2+
Drug control policy strategies presented : Presentation on the advantages and disadvantages of the three drug control policy strategies presented during the open hearing in the scenario
Find how far away would mercury from sun : If the sun (diameter 864,000 miles) were the size of an NBA basketball (29.5 in), how far away would mercury
What is the size of the sampling error : Consider the following sample of nine wait times measured in seconds at a drive through coffee shop. The population mean and standard deviation are 100 and 20 respectively.  125 95 66 116 99 91 102 51 110 a. What is the size of the sampling error i..
Which distribution is more unequal based on the figures : Note that the first set of numbers represents the various incomes; whereas the second set of numbers represents the number of people earning each of these incomes. For example, in Avataria there are 50 people with the income of $100, 25 people wit..
Explain sodium carbonate and silver nitrate reaction : Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A solution containing 3.60g of sodium carbonate is mixed with one containing 5.14 of silver nitrate.
What is the best predicted job performance rating : Find the best predicted value of y corresponding to the given value of x. The regression equation relating attitude rating (x) and job performance rating (y) for the employees of a company is hat(y)=11.7+1.02x. Ten pairs of data were used to obtai..
Explain the sulfur dioxide reacts with solid calcium oxide : A particular coal contains 2.5% sulfur by mass. When this coal is burned, the sulfur is converted into sulfur dioxide gas.The sulfur dioxide reacts with solid calcium oxide to form solid calcium sulfite CaO(s)+SO2(g)?CaSO3(s),S(s)+O2(g)?SO2(g)

Reviews

Write a Review

Econometrics Questions & Answers

  Determine the reaction function for each firm

Determine the reaction function for each firm. Firm 1: Q1 = - Q2, Firm 2: Q2 = - Q1 b. Calculate each firm's equilibrium output. c. Calculate the equilibrium market price. d. Calculate the profit each firm earns in equilibrium.

  What is the monoploists profit maximizing quantity

A firm is a monopoly with demand p+120-y and cost TC=y^2-4y+1000. suppose the government imposes a price ceiling of $90. what is the monoploist's profit maximizing quantity when the price ceiling is in place what if the price ceiling is $80

  What price should be charged for the bundle?

At a student café, there are equal numbers of two types of customers with the following values. The café owner cannot distinguish between the two types of students because many students without early classes arrive early anyway (i.e., she cannot p..

  Concentration rate and the herfindahl-hirschman index

If a corporation operates in a highly competitive industry and competes against many other companies. In the last some years, many new companies have entered the industry and firm now earns a return on investment very close to prevailing interest rat..

  Discuss the role of federal reserve in economy

This answer give vital hints on why the Federal Reserve establish general and specific rates of interest. This explains the recent tools the Federal Reserve has used to influence the United States economy.

  Concepts of price elasticities

Groupon is a popular group purchasing and daily deals website. In a current promotion, a local restaurant to sold buffet vouchers at a step discount on Groupon's website.

  Determining greatest present value

Suppose that you have just been employed as a consultant to help a company decide which of 3-options to take to maximize the value of the company over the next three years.

  Calculate the net private benefits of the project

Calculate the net private benefits of the project to the foreign-owned company, as a net present value and calculate the net social benefits of the project from the viewpoint of the Australian economy, with the same criterion.

  Calculating herfindahl index

Determine the Herfindahl index for an industry composed of three companies one with 70% of the market, and the other two with 20 and 10 percent of the market respectively one company with 50% share

  What is the sample standard deviation of weights

What is the sample standard deviation of weights and calculate the change in weight

  New deal finance speculation and turbulence

The United States was devastated through the Crash of 1929 and the following depression. What policies were enacted during the New Deal contain finance speculation and turbulence?

  What is the optimal pure bundling price

Microsoft sells three different programs in their office suite: Word, Excel and PowerPoint. Each has a marginal cost of $15. There are three types of con- sumers, writers, accountants and professor, who have the following values for the three diff..

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