Docsity
Log inSign up
Docsity
Prepare for your exams
Prepare for your exams

Study with the several resources on Docsity

Earn points to download
Earn points to download

Earn points by helping other students or get them with a premium plan

Guidelines and tips
Guidelines and tips
Sell on Docsity
Sell on Docsity
Log inSign up

Prepare for your exams

Study with the several resources on Docsity

Find documents

Prepare for your exams with the study notes shared by other students like you on Docsity

Search Store documents

The best documents sold by students who completed their studies

Search through all study resources
Docsity AINEW

Summarize your documents, ask them questions, convert them into quizzes and concept maps

Explore questions

Clear up your doubts by reading the answers to questions asked by your fellow students

Earn points to download

Earn points by helping other students or get them with a premium plan

Share documents
download point icon20 Points

For each uploaded document

Answer questions
download point icon5 Points

For each given answer (max 1 per day)

All the ways to get free points
Get points immediately

Choose a premium plan with all the points you need

Study Opportunities

Choose your next study program

Get in touch with the best universities in the world. Search through thousands of universities and official partners

Community

Ask the community

Ask the community for help and clear up your study doubts

University Rankings

Discover the best universities in your country according to Docsity users

Free resources

Our save-the-student-ebooks!

Download our free guides on studying techniques, anxiety management strategies, and thesis advice from Docsity tutors

From our blog

Exams and Study
Go to the blog

Comparing Means: T-Test for Travel Distance between Men and Women - Prof. Lorrie L. Hoffma, Study notes of Statistics

Georgia Southern University–Armstrong CampusStatistics
Prof. Lorrie L. Hoffman

Instructions on how to perform a t-test to compare the means of travel distance between men and women using a small sample size. It includes the problem statement, theory background, and steps to calculate the t-score and compare it to the t-value from the t-table. The document also explains how to find the degrees of freedom and the confidence interval for the difference in means.

Typology: Study notes

Pre 2010

Uploaded on 08/04/2009

koofers-user-92b
koofers-user-92b 🇺🇸

8 documents

1 / 6

Toggle sidebar

This page cannot be seen from the preview

Don't miss anything!

bg1
CI and Testing to compare Means
NEW TYPE OF QUESTION
Test whether men at AASU have a mean
travel distance that is greater than the
mean travel distance for women. Use
. Collect data on 3 men and 3
women. Ho: men = women Ha: men > women
Note: these are really too small samples.
THEORY:
men women
x x
_____________________ is a t-score
2 2
men women
men women
s s
n n
1
pf3
pf4
pf5

Partial preview of the text

Download Comparing Means: T-Test for Travel Distance between Men and Women - Prof. Lorrie L. Hoffma and more Study notes Statistics in PDF only on Docsity!

CI and Testing to compare Means

NEW TYPE OF QUESTION

Test whether men at AASU have a mean

travel distance that is greater than the

mean travel distance for women. Use

. Collect data on 3 men and 3

women. Ho: men = women Ha: men > women

Note: these are really too small samples.

THEORY:

men women

x  x

_____________________ is a t-score

2 2 men women men women

s s

n n

when you compare it to a t-value in the t-table A- your df =

2 2 men women men women 2 s s n n 

____________________________

2 2 2 2 men women men men women women

1 s 1 s

n 1 n n 1 n

EEEKK!! Let XL do it.

This number is always between

((Smallest n) –1) and (the sum of the n’s – 2)

s / n^ given to you in the problem or for this new situation men women x  x / 2 2 men women men women s s n n       

  1. go to the t-tables in A- A.Look for 2-tail or one-tail B. Look for so now you know which column C. Find the correct row by using your df D. Pluck off your t-value E.Put a negative in front of your t-value if there is a < in your Ha hypothesis 4.COMPARE A.If Ha is < and your t-score < - t-value then “go with” Ha B. If Ha is > and your t-score > - t-value then “go with” Ha C. If Ha is not equal to sign then if either A. or B. is true then “go with” Ha.

The t-tables are found in text

Upper tail probability

df .10 .05 .025 .01…

Confidence level