Jump to content

SPSS/T-test Help

DBWright
in Homework Help

Featured Replies

Hi!

I have 2 independent groups that I already know the means for, and I know the sample variances are equal. Both means and the sample standard deviation are given in the problem.

 

Group 1: Mean=1000, based on average last year

Group 2: Mean=976.3, based on a random sample of 36 this year.

s=47.8

 

Question: Is this year's mean less than last year's?

 

I know how to do an independent samples t-test by hand, and interpret results. However, my instructor said to use SPSS whenever possible. Therefore, if the raw data isn't given, is it possible to use SPSS?

 

Thank you!!!!

Archived

This topic is now archived and is closed to further replies.

Go to topic listing

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.

Configure browser push notifications
Chrome (Android)
  1. Tap the lock icon next to the address bar.
  2. Tap Permissions → Notifications.
  3. Adjust your preference.
Chrome (Desktop)
  1. Click the padlock icon in the address bar.
  2. Select Site settings.
  3. Find Notifications and adjust your preference.