User Account

All Pages

Pooled estimate of the population variance

Assignment Help Basic Statistics
Reference no: EM132160575

Explain first why a t test for independent means uses a single pooled estimate of the population variance, and then secondly how come?

Reference no: EM132160575

Questions Cloud

Finding the line of best fit : How would I Calculate the linear correlation coefficient of that data and describe what the information provides and finding the line of best fit.
How did blacks respond to the racial violence and animus aim : Some of these African Americans had migrated to urban centers where whites sought to keep them segregated in all-black neighborhoods.
Permutations or combinations : If you are allowed to use numbers 1-9 and need to choose the pass code of an exact 4 digit code, how many possibilities are there?
Write a letter to your representative : State your issue position clearly in this letter and then present an argument for why that elected official should support your position on that issue.
Pooled estimate of the population variance : Explain first why a t test for independent means uses a single pooled estimate of the population variance, and then secondly how come?
What strategies did washington and dubois promote : What strategies did Washington and DuBois promote in their quest to gain civil rights for the Black community?
Independent means appropriate to use : When is the t-test for independent means appropriate to use? Please explain.
Describe how the industrial revolution created new forms : Describe how the Industrial Revolution created new forms of freedom for some workers while restricting some freedoms for others.
Determine the mean-median and mode data : Determine the mean, median, and mode data? What do these statistics tell you about the sick days due to colds and flu the previous

Reviews

Write a Review

Basic Statistics Questions & Answers

  Ordering of this pair of questions is concerned

As far as the ordering of this pair of questions is concerned, do you think it is better to order them as above or in reverse order? Explain your reasons.

  Problem regarding the salary by job type

At a small company, the head of human resources wants to examine salary to prepare annual reviews. He selects 28 employees at random with job types

  Interpretation of slope-intercept and regression equation

The use of linear regression is a critical tool for a manager's decision-making ability. Please carefully read the example below and try to answer the questions in terms of the problem context.

  Test of hypothesis by using chi square

There are four entrances to the Government Center Building in downtown Philadelphia. The building maintenance supervisor would like to know if the entrances are equally utilized.

  Suppose a manufactuirng company make a certain item the

suppose a manufactuirng company make a certain item. the time to produce each item is normally distributed around a

  Determine the average waiting time

You keep doing so until you get a 6. The game is then over (there is no waiting when you get 6.) determine the average waiting time.

  Determine t-test for two independent samples

Do you view a chocolate bar as delicious or as fattening? Your attitude may depend on your gender. In a study of American college students, Rozin, Bauer and Catanese (2003) examined the importance of food as a source of pleasure versus concerns ab..

  Discuss the impact of the changing urban center

Discuss the impact of the changing urban center. Include the impacts on political, economic, and social roles and opportunities.

  Wen those 15 valuse are added then didvided by 15 the

a statiscal abstract includes the average per captia income for each of 15 states. when those 15 valuse are added then

  Observations produced a sample mean

A random sample of 61 observations produced a sample mean of 95. Using α=0.025, would you reject the null hypothesis? The population standard deviation is known to be σ=11.

  If xsub1xsub2xsubn constitute a random sample from a

if xsub1xsub2....xsubn constitute a random sample from a population with the mean mu and the variance use the methods

  What is the probability of each of them winning

the game continues until soneone gets heads. What is the probability of each of them winning?

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd