Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Statistics and Probability Expert

Hypothesis test for difference between two population variances.

A professor in the accounting department of a business school claims that there is much more variability in final exam scores of students taking the introductory accounting course as a necessity than for students taking the course as part of a main in accounting.  Random samples of 13 non accounting majors (group 1) and 10 accounting majors (group 2) are taken from the professor's class roster in his large lecture, and the following results are computed based on the final exam scores:

n1 = 13 S12 = 210.2

n2 = 10 S22 = 36.5

At the 0.01 level of significance, is there evidence to support the professor's claim?

Statistics and Probability, Statistics

  • Category:- Statistics and Probability
  • Reference No.:- M920618

Have any Question? 


Related Questions in Statistics and Probability

The mean sat score in mathematics is 515 the founders of a

The mean SAT score in mathematics is 515 . The founders of a nationwide SAT preparation course claim that graduates of the course score higher, on average, than the national mean. Suppose that the founders of the course ...

Hello kitty company claims that the proportion of its

Hello Kitty Company claims that the proportion of its employees investing in individual investment accounts is higher than national proportion of 50%. A survey of 100 employees in Hello Kitty Company indicated that 58 of ...

Recommendationsremember that your recommendations should be

Recommendations: Remember that your recommendations should be as authentic to a real-world situation as possible. If you are going to be asking your organization to spend money on training, for example, your justificatio ...

1 all successful empires share certain characteristics what

1. All successful empires share certain characteristics. What are these characteristics and how do they relate to the rise of the Muslim empires? Put Islam in its historical context and explain how the Umayyad and Abbasi ...

Lazer incorporated purchased a delivery van for 29000 its

Lazer Incorporated purchased a delivery van for $29,000. Its useful life is estimated as 5 years, with a salvage value of $2,000. Using the sum-of-the-years' digits depreciation method, calculate the book value at the en ...

Two population meansa tomato farmer with a very large farm

Two Population Means A tomato farmer with a very large farm of approximately 2200 acres had heard about a new type of rather expensive fertilizer which would supposedly significantly increase his production. The frugal f ...

Records show that 13 of all college students are foreign

Records show that 13% of all college students are foreign students who also smoke. It is also known that 25% of all foreign college students smoke. What percent of the students at this university are foreign?

What would the null and alternate hypothesis be for the

What would the null and alternate hypothesis be for, " The airlines claim that complaints average less than 15 per month per airport. To investigate the problem an independent watchdog agency contacted a random sample of ...

Assume the random variable x is normally distributed with

Assume the random variable x is normally distributed with mean mu = 85 and standard deviation sigma =4. Find the indicated probability. P(x

Entertainment software association would like to test if

Entertainment Software Association would like to test if the average age of "gamers" (those that routinely play video games) is more than 30 years old. A random sample of 33 gamers was selected and their ages were record ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro