What is the standard error of the mean in the experiment

Assignment Help Econometrics
Reference no: EM13199889

The Oil Price Information Center reports the mean price per gallon of regular gasoline is $3.79 with a population standard deviation of $0.18. Assume a random sample of 40 gasoline stations is selected and their mean cost for regular gasoline is computed.

(a) What is the standard error of the mean in this experiment? (Round your answer to 4 decimal places.)

(b) What is the probability that the sample mean is between $3.77 and $3.81? (Round z value to 2 decimal places.Round your final answer to 4 decimal places.)

(c) What is the probability that the difference between the sample mean and the population mean is less than 0.01? (Round z value to 2 decimal places. Round your final answer to 4 decimal places.)

(d) What is the likelihood the sample mean is greater than $3.87?

Reference no: EM13199889

Questions Cloud

Define the concepts of socialization and related concepts : Define the concepts of socialization and related concepts? Describe and analyze the models of socialization?
What is the standard error of the mean : CRA CDs, Inc., wants the mean lengths of the "cuts" on a CD to be 135 seconds (2 minutes and 15 seconds). This will allow the disk jockeys to have plenty of time for commercials within each 10-minute segment.
What is the primary source of data for the application : What is the primary source of data for the application? Do alternatives exist? What is the most appropriate scale for the digital map data sets that are to be produced? What are the key considerations in the choice of Datum of the digital map data se..
Produce an entity relationship model : You are required to produce an Entity Relationship Model (diagram) for a very simple electrical utility company prior to a full implementation of a relational database for the company’s activities.
What is the standard error of the mean in the experiment : The Oil Price Information Center reports the mean price per gallon of regular gasoline is $3.79 with a population standard deviation of $0.18. Assume a random sample of 40 gasoline stations is selected.
Difference between motivation and instinct : According to instinct approaches to motivation, people and animals are born preprogrammed with sets of behaviors essential to their survival. How does this explain the difference between motivation and instinct? How does it explain the similarities?
What is present worth of the concept compounded quarterly : The company's computer system uses fluid structure interaction modeling to test and analyze each airbag design concept. What is the present worth of the concept at 16% per year, compounded quarterly, if the quarterly cost in years 1 through 5 is $..
Create cron file that will regularly perform : Create a cron file that will regularly perform the following backups:?
How much can wells fargo lend to developer : How much can Wells Fargo lend to developer who will repay the loan by selling first 6 view lots out of 13 lots at $190,000 each 2 year from now Assume the bank will lend at a nominal 14% per year, compounded semiannually.

Reviews

Write a Review

Econometrics Questions & Answers

  Determine annual compound

On Juan's twenty-sixth birthday, he deposited $6,000 in a retirement account. Each year thereafter, he deposited $1,000 more than the previous year. Using a gradient series factor,determine how much was in the account immediately after his thirty-f..

  What price would the total expenditure on coffee be largest

Suppose the daily demand for coffee in Seattle is Q^d=100,000(3-P)^2 A. What is the elasticity of demand (Ed) at a price of $2.(Please show exactly which equation is needed to find Ed here) B. At what price would the total expenditure on coffee be la..

  How much will the profit or loss be

5 150 300 6 150 390 Refer to the above data. If the product price is $95 at its optimal output, will the firm realize an economic profit, break even, or incur an economic loss How much will the profit or loss be Show all ca..

  Explain how you would test the joint null hypothesis

Explain how you would test null hypothesis that b1=0 in the multiple regression model, Y=b0+b1*X1+b2*X2+b3*X3+u. Also, explain how you would test the joint null hypothesis that b1=b2=0

  Compute a consumer price index for apples for each year

Abby consumes only apples. In year 1, red apples cost 1$ each, green apples 2$ each, and Abby buys ten red apples. In year 2, red apples cost $2, green apples cost $1, and Abby buys 10 green apples.

  What is opportunity cost of your day at professional game

Ahead of you is a wonderful weekend. You bought a ticket to see a professional football game. The ticket cost $50 a piece, plus you estimate a cost of $25 each for gas to the game and parking. Since the game is in the middle of the afternoon, you ..

  What are initial levels of real gdp and labor productivity

Initally, the population of Cape Despair is constant and real GDP per hour of labor is at the subsistence level of $15. Then a technological advance shifts the production function upward by 50 percent at each level of labor.What are the initial le..

  What would drive the price toward the equilibrium

a. Graph the demand and supply curves. What is the equilibrium price and quantity in this market b. If the actual price in this market were ABOVE equilibrium price, what would drive the price toward the equilibrium

  How many units will actually be rented

demand and supply schedules for rental apartment in the city of Gotham are given below Monthly Rent $2500 $2000 $1500 $1000 $500 Apartment Demanded 10,000 12,500 15,000 17,500 20,000 Apartment Supplied 15,000 12,500 10,000 7,500 5,000 Suppose a ne..

  What is the excpected exchange rate in one year

The Mexican peso is trading at 10 pesos per dollar. If the expected U.S. inflation rate is 2% while the expected Mexican inflation rate is 23% over the next year, given PPP, what is the excpected exchange rate in one year

  Compute the annual income you will receive during retirement

Assume that savings are invested at the end of each calendar year. Assume that during your working life you earn a return of 8% per year, and that when you retire at age 65 you move your assets into more conservative investments and earn a return ..

  Determine the preferred alternative

The Ajax Manufacturing Company wishes to choose one of the following machines. Machine 1 Machine 2 Machine 3Initial cost $12,000 $15,000 $21,000 Planning horizon 5 years 5 years 5 years Salvage value $1200 $2,000 $3,000Revenue years 1,..,k $3,000 +50..

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