Correlation and confidence intervals issues

Assignment Help Other Subject
Reference no: EM13778923

Discussion Question 1:

A hardware retailer has average sales of $64,235 with a standard deviation of $5,918 for a 12-month period. The mean monthly sales for all retailers in the chain are $59,844. Is this hardware retailer's sales significantly different from all retailers in the chain at p= .05? Are they significantly different at p= .01? Calculate a .95 confidence interval for the data in problem.

Explain your findings and determine what question the confidence interval answers.

Discussion Question 2:

A car dealer is using the number of years customers have owned their vehicles to predict how long it will be before they elect to replace them. The correlation between the two is rxy = -.723 (the longer they have owned their present vehicles, the more quickly they are expected to replace them). The other relevant data are as follows for 32 customers:

Based on the information above, answer the following questions:

How long is the time to expected replacement for a customer who has owned a vehicle 6.5 years?

Calculate .95 and .99 confidence intervals and explain your results.

How will a larger standard deviation in the criterion variable affect the width of the confidence intervals? Why?

Guided Response: Review several of your classmates' postings. Respond to at least two classmates by commenting on whether or not you think there is a larger difference for the standard deviation. Explain how this data might impact business decision-making.

Reference no: EM13778923

Questions Cloud

Legal system connected to business : How is your country's legal system connected to business, and what is its impact? Is it favorable to the growth of business, or unfavourable? Does it protect some but not others? Does the legal system foster the goal of resolving disputes promptly, e..
Network consultation proposal : Explain the role of integrity and availability in a networked environment.Use technology and information resources to research issues in computing networks.
Implement how you were involved in group activity : Team Building, Implement how you were involved in group activity, as the leader or a group member, attempt to enhance cooperation and teamwork within the group
Dependent and independent demand : The concepts of dependent and independent inventory systems are very important. However, their importance is somewhat buried by the quantitative aspects of the EOQ and MRP models.
Correlation and confidence intervals issues : Explain your findings and determine what question the confidence interval answers
What is the genotypic ratio expected : 1. Based on the parents' genotypes, what is the genotypic ratio expected from a monohybrid cross between the two parents for the trait?2. Based on the genotypic ratio from question 1, what is the expected probability of each genotype?5. How close did..
Alternative production decisions : Production decisions using level and chase strategies are presented in your textbook as valid alternative mechanisms of scheduling production. Quantitative models are typically evaluated using lowest cost as the primary decision criteria, with issues..
Why do you think that difference exists : The Uniform Commercial Code governs sales contracts. Other contracts are governed primarily by contract common law. Identify a situation where the UCC differs from contract common law. Why do you think that difference exists
What is international strategy for campbell soup based : The following question is for a strategic management class and i am struggling answering it. What is the International Strategy for Campbell Soup based on....

Reviews

Write a Review

Other Subject Questions & Answers

  Friction along a horizontal rod

A 1.2-kg collar C may slide without friction along a horizontal rod. It is attached to three springs, each of constant k = 400 N/m and 150-mm undeformed length.

  Societal oppression for the population

Identify how homophobia, heterosexism, and religiosity contribute to societal oppression for this population.

  Weight the balance of the freedom of expression

How do you weight the balance of the freedom of expression through arts and entertainment media in a free society with the need to protect its youth from harmful media effects? What is your recommendation based on moral reasoning in this issue?

  Forensic treatment evaluation-clinical treatment evaluation

What are the differences between the forensic treatment evaluation and the clinical treatment evaluation in non-forensic settings?

  Diagnosed with orchitis

A young male patient has just been diagnosed with orchitis. The physician requests you provide the patient with printed information concerning this condition. How do you approach this patient teaching opportunity?

  Personal development class ethics personal responsibility

personal development class ethics personal responsibility in organization. write a reflection paper and follow accepted

  Essay about game theory

plit this assignment into two parts. The first part titling Game Theory Application and the second part Game Theory Anaylsis. Teh forst part should include elements of a game, types of games, types of strategies, equilibrium, the prisoner's dilemm..

  Professional learning community

Identify how a professional learning community could benefit your school or workplace culture in the context of these situations.

  Progression of religion and industrialization

Give an example of an element of culture or society that has progressed, evolved or improved over time, whether centuries or millennia. Is it possible to see religion(s) progressing, evolving or improving over time in a similar way?

  Distinguish between assigned and emergent leaders

Distinguish between assigned and emergent leaders. Give an example of each. Define the five components of power as setforth in the textbook. Please give an example of each.

  Uses an injection-molding machine

The Taylor Toy Corporation currently uses an injection-molding machine that was purchased 2 years ago. This machine is being depreciated on a straight-line basis, and it has 6 years of remaining life. Its current book value is $2,100, and it can be s..

  Write the royal officials who supported solomon and why

list the royal officials who supported solomon and why they were important in helping solomon ascend to the throne of

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