Is there a difference between the mean degree of lateness

Assignment Help Basic Statistics

Reference no: EM131390169

Refer to given Exercise.

(a) Is there a difference between the mean degree of lateness of company 3 and that of the averages of companies 1 and 2? Test at the 5% level of significance.

(b) Find a 90% confidence interval for the contrast defined in part (a).

Exercise
A large retail company has to deliver its goods to distributors throughout the country. It has been offered trial-run services by three transportation companies. To test the efficiency of these three companies, it randomly assigns its outgoing product shipments to these transporters and determines the degree of lateness as a proportion of the time allocated for delivery. Table 12-38 shows the degree of lateness of the three companies for five shipments,

(a) Is there a difference in the mean degree of lateness of the three transportation companies? Test at the 10% level of significance.

(b) Find a 95% confidence interval for the mean degree of lateness of company 1.

(c) Find a 90% confidence interval for the difference in the mean degree of lateness of companies 2 and 3.Can we conclude that there is a difference in their means at the 10% level of significance?

(d) Which company would you choose? Why?

Transportation Company	Degree of Lateness Values
1	0.04	0.00	0.02	0.03	0.02
2	0.15	0.11	0.07	0.09	0.12
3	0.06	0.03	0.04	0.04	0.05

Reference no: EM131390169

Questions Cloud

What is the rated current of the secondary : A transformer has a primary voltage of 240 volts and a secondary voltage of 60 volts. It has a power rating of 7.5 VA. What is the rated current of the secondary?

How the countrys policies influence its productivity growth : How the country's policies influence its productivity growth? How the country's financial system is related to key macroeconomic variables? How your organization can reduce the risk they would face in relocating?

What you have put together for advanced topologies inc : For this Discussion, you will evaluate security metrics based on what you know and have put together for Advanced Topologies, Inc.

Write a comment about the article on cultural values : Great post Richard, i can also add that , Carteret (2011) in her article on Cultural values of Asian patients and families, she mentions that Asians tend to be highly group-oriented people who place a strong emphasis on family connection as the ma..

Is there a difference between the mean degree of lateness : Is there a difference between the mean degree of lateness of company 3 and that of the averages of companies 1 and 2? Test at the 5% level of significance.

Write a comment about the given post : Great information Melina, also, according to "Asian Nation", many barriers prevent Asian American women from receiving the help that they need to escape domestic abuse. Perhaps the most damaging is the tradition and legacy of male dominance and pa..

What could have been done to avoid the disastrous security : For this Discussion, you will analyze the specifics of the attack and determine what could have been done to avoid this disastrous security breach.

Discuss about the evaluation of the literature : In this assignment, students will pull together the change proposal project components they have been working on throughout the course to create a coursework portfolio inclusive of sections for each content focus area in the course. At the conclus..

Describe possible lan topologies that could used at location : IT 340- Describe possible LAN topologies that could be used at the new location. Compare the identified LAN topology possibilities based on their relativestrengths and weaknesses in regard to support practices.

User Account

All Pages