Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Business Law & Ethics Expert

problem: A busy landscaping supplies company sells wood chips for garden mulch. The mulch is sold by the cubic meter and delivered to households in a small truck. Each and every truckload is expected to be 4 cubic meters. The company decides to conduct an audit of actual load volumes through measuring a sample of loads for a two-week period. The data file Mulch.xls contains the volume (in cubic meters) from a sample of 368 truckloads of cypress pine wood chips and 330 truckloads of cedar wood chips.

a) For cypress pine wood chips, construct a 95% confidence interval estimate of the mean volume.

b) For cedar wood chips, construct a 95% confidence interval estimate of the mean volume.

c) The company is interested to know whether there is a linear relationship among the delivery volumes for the two kinds of wood chips. Compute a correlation coefficient for the first 330 pairs of observations and test whether this relationship is important at 1% level. Make sure you state the hypotheses which you are testing.

d) Based on the outcomes of (a) and (b), what conclusions can you reach concerning mean volume of the cypress pine wood chips and cedar wood chips?

problem: In a random sample of 25 observations from a normal population, we determine that the sample mean = 140, and the sample standard deviation = 10. By using a level of significance of 0.05, test the hypothesis that the population mean is 150.

You are needed to:

a) State the kind of test which you are going to use.
b) State the hypotheses which you are going to test.
c) Compute the standard error.
d) Compute the t-statistic.
e) Compute the p-value.
f) Draw your conclusion.
g) Find out the 95% confidence interval of the population mean and state whether it supports your conclusion given in f) above.

problem: The fill amount of soft drink bottles is usually distributed with a mean of 2.0 liters and a standard deviation of 0.05 liters. If you choose a random sample of 25 bottles, what is the probability that the sample mean will be?

a) Between 1.99 and 2.0 liters?
b) Below 1.98 liters?
c) Above 2.01 liters?
d) The probability is 99% that the sample mean will contain at least how much soft drink?

problem: It is believed that a linear relationship exists among Salary (the dependent variable) and the employees experience measured in years (the independent variable) for Diploma graduates. By using the summary data from a sample of 10 employees: experience = 93, = 975, salary = 1014, = 105104, = 9922

a) Provide the regression line equation for this sample. Interpret the coefficient and the intercept.

b) Compute the standard error of estimate and describe what it tells you about the model fit.

c) Test to find out whether there is adequate evidence to infer that a linear relationship exists between experience and salary at the 0.01 significance level. Make sure you state the hypotheses which you are testing.

d) Use your model to forecast the expected salary where an employee has 15 years of experience or state why it is not possible to do so.

problem: A transport company wishes to predict the price of petrol based on international crude oil prices. They record average monthly petrol prices and crude oil prices over a 12 month period.

1368_average monthly price record.jpg

a) Plot a scatter diagram and, assuming a linear relationship, use the least-squares technique to compute the regression equation for this data. You will require to show your calculations for SSX, SSXY and

b) Interpret the meaning of the Y intercept, and the slope in this problem.

c) Use the prediction equation developed in (a) to forecast the petrol price if crude oil is $75 per barrel.

d) Compute the coefficient of determination, r2, and interpret its meaning in this problem.

e) Perform a residual analysis on your outcomes and found out whether the sample data meet the linear regression supposition of equal variance (homoscedasticity).

f) At 0.05 level of significance, is there evidence of a linear relationship among petrol and crude prices? Make sure that you state the hypotheses you are testing.

g) Construct a 95% confidence interval of the population slope.

Business Law & Ethics, Finance

  • Category:- Business Law & Ethics
  • Reference No.:- M9136

Have any Question? 


Related Questions in Business Law & Ethics

Question 1 discuss the issue of the supermax prison what

Question 1: Discuss the issue of the supermax prison. What are some of the issues that these facilities face in their operation? What are some of the issues that staff members face who work in these institutions? Examine ...

Assignment1warranty review assignment find a warranty

Assignment 1. Warranty Review Assignment. Find a "warranty" pertaining to the sale of goods. Normally, these are included in the boxes containing electronic devices, home appliances, and electrical tools. You can also fi ...

You are an official of the union brought in to resolve the

You are an official of the union brought in to resolve the tensions between Bob and the company and the union. Write a memo in Word with suggestions on how you would propose to solve the labor-employment problem. Refer t ...

Supervisory practices in criminal justice essayanalyze

Supervisory Practices in Criminal Justice Essay Analyze organizational culture as it relates to the supervision of criminal justice entities. Write a 2-4-page paper (excluding cover page) responding to the following: Off ...

Assignment whistleblowing and sarbanes-oxleyuse the

Assignment: Whistleblowing and Sarbanes-Oxley Use the Internet to research instances of whistleblowing in publicly traded companies within the last 12 months. Write a two to three (2-3) page paper in which you: 1. Descri ...

1 the united states does not currently have a policy of

1. The United States does not currently have a policy of using racial profiling, secret police surveillance or a national identity card system. The federal government recently announced new guidelines expanding the defin ...

Assignment - inappropriate behaviormarwan has worked at

Assignment - Inappropriate Behavior Marwan has worked at Studio Five Theme Park as a character actor portraying a swath-buckling pirate. He does not have an employment contract. He loves his job because of his seniority ...

Write a 700- to 1050-word paper on criminal justice

Write a 700- to 1,050-word paper on criminal justice organizational trends. Include the following information: Compare the use of privatization, e-corporation, and militarization of criminal justice organizations with cu ...

1 visit the fbi website at wwwfbigov and search for the

1) Visit the FBI website at www.fbi.gov and search for the crime laboratory. What services are provided to law enforcement by the lab? 2) Pick one of the services provided and how you would specifically ask the FBI lab t ...

Assignment question 1in january 2014 technicalities ltd a

Assignment Question 1: In January 2014 Technicalities Ltd., a labour hire company, hired Maisy, an office worker. She was re-entering the workforce after being a full-time mother at home for two years. Technicalities pla ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen