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

Questions Cloud

Independently drawn from two normal populations : Two samples of sizes 25 and 35 are independently drawn from two normal populations, where the unknown population variances are assumed to be equal. The number of degrees of freedom of the equal-variances t test statistic is:
Total number of observations must equal : In a completely randomized design for ANOVA, the number of degrees of freedom for the numerator and denominator are 4 and 25,respectively. The total number of observations must equal.
Findings of the hypothesistest : When companies are designing a new product, one ofthe steps typically taken is to see how potential buyers react to apicture or protype of the proposed product.The product-developmentteam for a notebook computer company has shown picture A to a large..
Identify and interpret the p-value for the test : In a study by WebCriteria,it took an average of 2.1 minutes to locate information and buy products on the Delta Airlines website,compared to an average of 2.7 minutes on the British Airways site.
Test null hypothesis that population variances are equal : 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 variance..
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.

Reviews

Write a Review

Other Subject Questions & Answers

  How the reserve bank of australia has dealt with the 2008

Financial crises, such as the recent ‘sub-prime’ credit crisis, have significant disruptive effects on the flow of funds in the financial system”. With the aid of examples

  Determining illegal immigration

Describe an issue you support that is an issue for a major political party. In what ways do your interests and the party's interests agree or disagree on the issue?

  Examples of effective lobbying-electioneering

What are some recent examples of effective lobbying, electioneering, building coalitions, grassroots pressure, and litigation.

  The requirements for legal compliance related

Consider the requirements for legal compliance related to staffing. What are some employment laws that govern staffing? Choose one and share some information about it with the class.

  Compulsive and obsessive behavior moods and mood swings

Which of the following is NOT a characteristic of a psychotic individua Compulsive and obsessive behavior Moods and mood swings A grossly distorted conception of reality A marked inefficiency in getting along with others and caring for oneself

  Change management in electronic commerce

Review the site design issues from the lecture slides and report on whether the existing company web site follows these suggestions.

  Concept about insulin

Use this fact to describe why people grow hungry a few hours after a day-time meal however not so quickly at night.

  Why is the court talking about the due process clause

If Florida has a long arm statute that tells Florida courts that it may exercise personal jurisdiction over someone like Rudzewicz, why is the court talking about the due process clause?

  What requirements for ais

What requirements (I'm talking IT now) would accountant be able to assist in as the AIS process is built out. I think accountant is vital resource for this effort - what other groups may have requirements for AIS?

  Why do we even need a modifier

“Why do we even need a modifier? Can’t we just code the main procedure performed and not worry about adding in extra details?” Why or why not?

  Occupational safety and health act according to silverstein

Review “Working in harm’s way: Getting home safe and sound? OSHA at thirty five” in Chapter 5 and respond to the following: Explain the special risks faced by workers in the twenty-first century U.S. labor force, according to Silverstein. Discuss the..

  Find writing error challenging to overcome in writing

Recognize a serious writing error you find challenging to overcome in own writing. What method will you use to avoid this error?

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