Business and Finance Homework

Need finance homework help? Ask an Expert

Connect one-on-one with {0} who will answer your question

Related Business and Finance Homework Questions
Confidence Intervals and Sample Size for Proportions. Find
Confidence Intervals and Sample Size for Proportions. Find the critical value (Za/2) for 90% confidence interval. Za/2=… read more
Tom
Tom
Master's Degree
1,772 satisfied customers
Statistics Homework I have to answer 1 question to my team
Statistics HomeworkI have to answer 1 question to my team assignment. The question isWhat percent of the Saturday deliveries would result in a customer receiving a free order?I will attach the spreads… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
I need the answer to the questions: 1. A consultant for Dell
1. A consultant for Dell was investigating computer usage among students at a particular university. 200 undergraduates and 100 postgraduates were chosen and asked if they owned a laptop. It was found that 81 of the undergraduates and 63 of the postgraduates owned a laptop. The consultant calculated that 48% (144 out of 300) of the students interviewed owned a laptop. Explain, with reasons, whether the figure of 48% would be a good estimate of the proportion of all students who own a laptop. Hint: The answer is ‘Well James, it depends!', but obviously reasons are required! (10 marks) 2. A 95% confidence interval for the mean income of shop assistants in a certain city, based on a random sample of n shop assistants, is found to be (£18,000, £21,000). Explain what this means briefly (in at most 2–3 sentences). Would a 90% confidence interval be better than a 95% confidence interval? Justify your answer. Hint: The answer is ‘Well James, it depends!', but obviously reasons are required! (10 marks) 3. For a certain variable, the standard deviation in a large population is equal to 16. How large a random sample is needed to be 99% confident that the sample mean is within 2 units of the population mean? Would you recommend a confidence level other than 99%? Hint 1: Use the confidence interval Excel utility. Hint 2: The answer is ‘Well James, it depends!', but obviously reasons are required! (10 marks) 4. An accounting firm wishes to test the claim that no more than 6% of a large number of transactions contain errors. In order to test this claim, they examine a random sample of 225 transactions and find that exactly 20 of these are in error. What conclusion should the firm draw? Use a 5% significance level. Hint: Use the hypothesis testing Excel utility (one population). 5. Explain (in no more than a paragraph for each) the purpose of: (a) sampling (b) hypothesis testing. Discuss any advantages and limitations of each. 2 (10 marks) (10 marks) 6. A lumber company makes plywood for the furniture industry. One product it makes is 3/4-inch panels. It is very important that the panels conform to specifications. One specification calls for the panels to be made to an average thickness of 0.75 inches. Each hour, 5 panels are selected at random and measured. After 20 hours, a total of 100 panels have been measured (so the sample size is n = 100). The data are in the file ‘Lumber.xls'. (a) Based on the sample data, what should the company conclude about the status of its product meeting the thickness specification? Test at a 1% significance level. Discuss your results in a brief ‘executive summary' to the production manager. Hint: Use the hypothesis testing Excel utility (one population). (b) The production manager has looked at the results of your test. He wishes to repeat this sampling process and wants a rule to compare future X ̄ values only. So, based just on a sample mean of any new random sample of panels, without having to conduct a formal hypothesis test, he wishes to decide whether the thickness specification is being met, again using a 1% significance level. Develop a suitable rule. Hint: Use the hypothesis testing Excel utility (one population). (c) The manager wishes to know what type of error in (a) could have been made and what the potential consequences of the error might be. (25 marks) 7. A bookstore samples its order record to examine the number of days between placing an order and receiving the goods. The results (in days) are shown below. Assess and comment on the differences between surface transportation and air freight. You may use Excel! The data are in the file ‘Bookstore.xls'. Hint: This question is deliberately open-ended. You may investigate the data any way you like, for example calculating some descriptive statistics. Surface transportation 18 20 24 23 28 32 24 39 18 29 25 27 19 24 21 19 24 27 33 37 15 20 26 21 17 26 25 23 25 35 Air freight 12 12 13 21 18 14 9 16 18 14 13 11 15 11 17 14 12 13 11 17 19 16 14 14 12 … read more
F. Naz
F. Naz
Bachelor's Degree
CA Finalist & Completed B.com
608 satisfied customers
I have 8 questions of statistic that im stuck with,
i have 8 questions of statistic that im stuck with … read more
F. Naz
F. Naz
Bachelor's Degree
CA Finalist & Completed B.com
608 satisfied customers
Score: Week 4 Confidence Intervals and Chi Square (Chs 11
Score: Week 4 Confidence Intervals and Chi Square (Chs 11 - 12) For questions 3 and 4 below, be sure to list the null and alternate hypothesis statements. Use .05 for your significance level in making… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
215 satisfied customers
Deadline is Saturday 3/21 DO NOT ACCEPT IF YOU CANNOT COMPLETE!!!!! Follow
Deadline is Saturday 3/21 DO NOT ACCEPT IF YOU CANNOT COMPLETE!!!!! Follow instructions to the letter!!! The major shopping areas in the community of Springdale include Springdale Mall, West Mall, and… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
215 satisfied customers
Understanding Business Research Terms and Concepts: Part 3 Determine
Understanding Business Research Terms and Concepts: Part 3 Determine which level of measurement— nominal, ordinal, interval, or ratio—is used in the following examples. • The Association of Accountant… read more
PDtax
PDtax
Owner
Master's Degree
14,530 satisfied customers
What is Survey Research? What are the advantages and disadvantages
What is Survey Research? What are the advantages and disadvantages of using surveys to collect data? Describe a research situation where survey research is appropriate and explain why?… read more
PDtax
PDtax
Owner
Master's Degree
14,530 satisfied customers
9.3 If you use a 0.10 level of significance in a two-tail hypothesis
9.3 If you use a 0.10 level of significance in a two-tail hypothesis test, what is your decision rule for rejecting a null hypothesis that the population mean is 500 if you use the Z test? For problem… read more
R.R. Jha
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
9.After a series of major corporations admitted to large
9. After a series of major corporations admitted to large accounting irregularities, a public policy research institute conducts a survey to determine whether the public favors increased governmental … read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
13 satisfied customers
I see that you have already answered these problems for someone
I see that you have already answered these problems for someone else and I would like to see if you could answer these questions for me. Coladarci text Chapter 14: Exercises 2, 4, 8, 9, 12, 16 Chapter… read more
Trigeoscal
Trigeoscal
College Math Professor
Master's Degree
960 satisfied customers
9. After a series of major corporations admitted to large
9. After a series of major corporations admitted to large accounting irregularities, a public policy research institute conducts a survey to determine whether the public favors increased governmental … read more
R.R. Jha
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
RRJha, I need the Module 7 work we discussed. Following
RRJha, I need the Module 7 work we discussed. Following is the format that the professor has said we must use to report the data (7 steps for each question). Thank you. Reporting Results Step 1: State… read more
R.R. Jha
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
Which of the following is not one of the steps for hypothesis
Which of the following is not one of the steps for hypothesis testing? Answer A)Determine the null and alternative hypotheses. B)Verify data conditions and calculate a test statistic. C)Assuming the n… read more
Neo
Neo
12,843 satisfied customers
It is recommended that people try to keep their cholesterol
It is recommended that people try to keep their cholesterol level below 200. The following Minitab output is for the control patients: test of mu = 200.00 vs mu < 200.00 Variable N Mean StDev SE Me… read more
R.R. Jha
R.R. Jha
Bachelor's Degree
6,909 satisfied customers
for business tutor 1.in a study of crime, the FBI found
for business tutor: 1.in a study of crime, the FBI found that 13.2% of all Americans had been victims of crime during a 1-years period. this result was based on a sample of 1,105 adult a. Estimate the… read more
Expert
Expert
364 satisfied customers
I need statistical verifaction of a process I have developed.
I need statistical verifaction of a process I have developed. I have a company with a online store locator. I need to select a sample of the stores from this locator and obtain an average drive time b… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
13 satisfied customers
. A recent survey of 50 executives who were laid off from
. A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position. The standard deviation of the sample was 6.2 we… read more
SuperiorTutor
SuperiorTutor
Bachelor's Degree
170 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

linda_us

linda_us

Master's Degree

852 satisfied customers

A tutor for Business, Finance, Accounts and other related topics.

F. Naz

F. Naz

Bachelor's Degree

608 satisfied customers

Have completed B.COM and CA Finalist

364 satisfied customers

dasdasd

Bizhelp

Bizhelp

Accountant

260 satisfied customers

BA degree and Certified Public Accountant

Mr. Gregory White

Mr. Gregory White

Master's Degree

215 satisfied customers

M.A., M.S. Education / Educational Administration

Brittany

Brittany

Professional

30 satisfied customers

AA/Accounting BS/Business

SusanAthena

SusanAthena

Master's Degree

13 satisfied customers

12 years experience consulting & management

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x