Test null hypothesis that population variances are equal

Assignment Help Other Subject
Reference no: EM13337936

For two samples from what are assumed to be normally distributed populations,the sample sizes and standard deviationsare n1 = 10, s1= 23.5, n2 =9, ands2 = 10.4. At the 0.10 level of significance, test the null hypothesis that the population variances are equal. Would your conclusion be different if the test had been conducted at the 0.05level ? At the 0.02 level?

Reference no: EM13337936

Previous Q& A

  Assuming the population standard deviation are equal

A sample of 40 investment customers serviced by an account manager are found to have had an average of $23,000 in transaction during the past year, with a standard deviation of $8,500. A sample of 30 customers serviced by another account manager aver..

  Assuming normal populations with equal standard deviations

An educator is considering two different videotapes foruse in a half-day session designed to introduce students to thebasics of economics. Students have been randomly assigned to twogroups,and they all take the same written examination after viewingt..

  Should we reject the directors claim

The director of admissions at a large university says that 15% of high school juniors to whom she sends university literature eventually apply for admission. In a sample of 300 persons to whom materials were sent,30 students applied for admission. In..

  Preliminary study the population standard deviation

A consumer agency has retained an independent testing firm to examine a television manufacturer's claim that its 25-inch console model consumes just 110 watts of electricity.

  Favor of the airlines e-mail idea

An  airline has surveyed a simple random sample of air travelers to find out whether they would be interested in paying a higher fare in order to have access to email during the flight.

  Confidence and the estimated standard deviation

The Arkansas State Police wish to estimate the average mph being traveled on the Interstate Highways,which cross the state.If the estimate is to be within 8 mpg of the true mean with 98% confidence and the estimated standard deviation is 22 mph,how l..

  Confidence interval for the population mean would equal

A random sample of size 15 taken from a normally distributed population revealed a sample mean of 75 and a sample variance of 25. The upper limit of a 95% confidence interval for the population mean would equal?

  Determine a confidence interval estimate

Your statistics instructor wants you to determine a confidence interval estimate for the mean test score for the next exam. In the past, the test scores have been normally distributed with a mean of 74.2 and  a standard deviation of 30.9. A 95% confi..

  Different from their counter-parts across the nation

The International Coffee Association has reported the mean daily coffee consumption for U.S. residents as 1.65 cups.Assume that a sample of 38 people from a North Carolina city consumed a mean of 1.84 cups of coffee per a day, with a standard deviati..

  Determineand interpret the p-value for the test

For a sample of 12 items from a normallydistributed population for which the standard deviation is σ =17.0, the sample mean is 230.8. At the 0.05 level of significance,test Hο : μ ≤ 220versus H 1 : µ > 220. Determineand interpret the p-value for the ..


Write a Review


Similar Q& A

  Single measurement-atmospheric pressure

Perhaps more than any other single measurement, atmospheric pressure is the best indicator of current and changing weather conditions.” Explain and discuss why this statement is correct. Provide some examples.

  Goals of the career development course

One of the goals of the Career Development course is for it to serve as dedicated time for you to consider your life after graduation. Assuming you complete your goal of obtaining your degree, please share some career expectations immediately after g..

  High blood calcium levels-tumorous parathyroid gland

Richard Neis had symptoms of excessive secretion of PTH (high blood calcium levels), and his physicians were certain he had a parathyroid gland tumor.

  Good management information system-transmission

A good management information system should provide the manager with as much information as possible and that information should be provided in no more than five seconds after it is requested.

  What are the difficulties of moral relativism

Moral relativism is the belief that what is right or wrong may differ from group to group, or culture to culture. What are the difficulties of moral relativism?

  Communication essential in emergency disaster management

Why is communication essential in Emergency Disaster Management? Name essential communication tools and discuss what you consider as impediments to effective communication in the aftermath of a disaster.

  Community policing will have addressing chief concerns

You are a captain in metro police district you have to deal with citizens complaints numerous fights,loud noise,sreet racing,how would you responsed to chief concerns? What role do you think community policing will have addressing chief concerns?

  Actual costs per unit for the most recent period

Lido Company's standard and actual costs per unit for the most recent period, during which 400 units were actually produced, are given below:

  Human personality is a product of nature

In a group discussion someone argues "that human personality is a product of nature, you're born with a certain personality type, it stays the same throughout your life, and there is little that nurture or environment can do to change that"

  Step in fowlers theory

Is there any step in Fowler's theory which interests or applies to you in particular? Explain how you find yourself relating to it.

  Records management presentation

You have been hired as the records manager for Happy Health Medical Clinic, a medium-sized, general practice about to start up business. Whereas this medical facility hopes to have everything computerized at some point in the future, that is not curr..

  What is harley-davidsons value proposition

How does Harley-Davidson build long-term customer relationships? What is Harley-Davidson’s value proposition?

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