Question

Find the value of t for the difference between two means based on an assumption of...

Find the value of t for the difference between two means based on an assumption of normality and this information about two samples. (Use sample 1 - sample 2. Give your answer correct to two decimal places.)

Sample Number Mean Std. Dev.
1 26 37.8 13.5
2 27 43.2 11.2
0 0
Add a comment Improve this question Transcribed image text
Answer #1

Test Statistics

We have assumed that the population variances are equal, the t-statistic is computed as follows:

X1 - X2 (n-1)si +(12-1)sz ( 1 ni+n2-2 + 1). m+ny-2 103 (m + m) 37.8 – 43.2 = -1.587 (26-1)13.52 +(27–1)11.22 26+27=2 “Y44 ( 2

To two decimal places is

= -1.59

Let me know in the comments if anything is not clear. I will reply ASAP! Please do upvote if satisfied!

Add a comment
Know the answer?
Add Answer to:
Find the value of t for the difference between two means based on an assumption of...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions
ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT