Perform a hypothesis test and state your conclusion

Assignment Help Other Subject
Reference no: EM13582485

A car insurance company advertises that customers switching to their insurance save, on average, $432 on their yearly premiums. A market researcher at a competing insurance discounter is interested in showing that this value is an overestimate so he can provide evidence to government regulators that the company is falsely advertising their prices. He randomly samples 82 customers who recently switched to this insurance and finds an average savings of $395, with a standard deviation of $102.

(a) Are conditions for inference satisfied?

(b) Perform a hypothesis test and state your conclusion.

(c) Do you agree with the market researcher that the amount of savings advertised is an overestimate? Explain your reasoning.

(d) Calculate a 90% confidence interval for the average amount of savings of all customers who switch their insurance.

(e) Do your results from the hypothesis test and the confidence interval agree? Explain.

Reference no: EM13582485

Questions Cloud

Assume that the mean systolic blood pressure of normal : question assume that the mean systolic blood pressure of normal adults is 122 milliliters of mercury with a standard
The average score on that exam is 1226 and the standard : question to help students improve their reading a school district decides to implement a reading program. it is to be
Perform a hypothesis test evaluating if the companys claim : a company offering online speed reading courses claims that students who take their courses show a 5 times 500 increase
The average number of pounds of meat that a person : question the average number of pounds of meat that a person consumes each year is 218.4 pounds. let the standard
Perform a hypothesis test and state your conclusion : a car insurance company advertises that customers switching to their insurance save on average 432 on their yearly
Find the probability that a randomly selected person : q1.the average number of pounds of meat that a person consumes each year is 218.4 pounds. let the standard deviation
A food safety inspector is called upon to investigate a : a food safety inspector is called upon to investigate a restaurant with a few customer reports of poor sanitation
Write the null and alternative hypotheses in words and : write the null and alternative hypotheses in words and using symbols for each of the following situations.a since 2008
If a higher confidence level means that we are more : if a higher confidence level means that we are more confident about the number we are reporting why dont we always

Reviews

Write a Review

Other Subject Questions & Answers

  Economic social structure-

Explaining why the economic social structure called 'middlemen' forms.

  What is deductible

Assume that under the terms of the seperstion agreement, Jogn will pay Carol $200 a month in child support for their teenage child, Nancy, and $900 a month as alimony. If Nancy marries, however, thew $900 payment will be reduced to $400 a month. What..

  Assume a small downtown area

Assume a small downtown area has two 12 ft. travel lanes with 6 ft. sidewalks on each side. This is all surrounded by buildings that are 25 ft. tall. What is the maximum urban heat island impact that can be expected?

  Distinction between morality and simple expediency

I need help critically discussing and understanding this statement. "We do not call anything wrong, unless we mean to imply that a person ought to be punished in some way or other for doing it- if not by law, by opinion of his fellow-creatures; T..

  Performing the evidence discovery

Address what federal statutes may be disseminated down to the state level during forensic expert's analysis of computer crime evidence.

  Compare the ancient use and views of authorship

Compare the ancient use and views of authorship (use in a local community, anonymity, and writing in the style of another previous author) with contemporary views of authorship (publicity, copyright laws, citation, plagiarism).

  In a 2-3 page apa style paper research an organization you

in a 2-3 page apa style paper research an organization you consider innovative. what elements make that organization

  Common negotiation tactics

Make sure to indicate what common negotiation tactics are being used to resolve these impasses.

  Why is climate change such a critical environmental issue

In the creation of mankind's attitude towards the environment which theories were most influential? Why is climate change such a critical environmental issue and how is the private sector affected by this.?

  Explain demonstrating ability in reasoning

A child is told that Bob is older than Sally, and Sally is older than Fred. When enquired, "Who is older, Bob or Fred?" child replies, "Bob." This child is demonstrating __________ ability.

  Fabric of our history and its impact on present times

Recall the thought process you went through for the “Explore It!” activity. Please respond to the following:  Share at least one (1) key event that occurred in your life.

  Compose earth’s continental crust

Identify some of the most important elements that compose Earth’s continental crust. Which two seem to be the most important and why?

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