Statistics Question

Learning Goal: I’m working on a statistics question and need an explanation and answer to help me learn.

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**PLEASE NOTE: Lab assignments that use the Laerd guides require you to walk through SPSS activities according to the process outlined in Laerd, then using what you learned through that process, you should write a response to the lab questions IN YOUR OWN WORDS. Do not simply copy and paste written descriptions from Laerd and use them as your own work.

The benefit of using Laerd Statistics as our primary resource for this course is that it has in-depth guides to conducting hypothesis tests in SPSS. Your task in this lab is to follow along with the Laerd Statistics resource for independent samples t-tests (https://statistics.laerd.com/premium/spss/istt/independent-t-test-in-spss.php (Links to an external site.)) and learn how to conduct this test in SPSS.

Activity:

Make sure to read through each page of the guide thoroughly, downloading the data when it prompts you to, and replicating the steps in SPSS along with the guide. There are several steps in the hypothesis testing process. Take your time, read the descriptions in the guide, and make sure you feel comfortable with why you are conducting the steps in SPSS. Your comprehension is very important at this stage because I will ask you to apply these skills with considerably less direction in the homework assignment for this module.

Answer the following questions in the Word document you will submit for this lab:

  • What are the null and alternative hypotheses in this example problem?
  • Based on these hypotheses, briefly describe what the researcher is interested in finding out through this independent samples t-test.
  • List and briefly describe the assumptions that need to be met to conduct an independent samples t-test.
  • Provide SPSS output to demonstrate whether these assumptions are met in this example.
  • Conduct an independent samples t-test and briefly describe what you found.
  • What was your conclusion? Did you reject the null hypothesis (find a significant difference) or fail to reject the null hypothesis (fail to find a significant difference)?

**Note: Make sure to put your work into 1 single Word document that you will submit for this assignment. Include your answers to the questions AND the SPSS output in the Word document that you submit.

Rubric

SPSS Lab Rubric

SPSS Lab Rubric

Criteria Ratings Pts
This criterion is linked to a Learning OutcomeAccuracy
3 ptsExemplary

No more than 2 incorrect answers. High attention to detail and excellent application of course curriculum to module activity.

2 ptsCompetent

3-5 incorrect answers. Moderate attention to detail and good application of course curriculum to module activity.

1 ptsDeveloping

More than 5 incorrect answers. Poor attention to detail and poor application of course curriculum to module activity.

3 pts
This criterion is linked to a Learning OutcomeOrganization
2 ptsExemplary

Submission is clean, immaculately organized, contains all pieces of information required for the lab. SPSS output organized very well and clearly connected to text answers.

1 ptsCompetent

Submission is mostly organized, if missing pieces of information, only missing 1-2 pieces of information. SPSS output mostly organized and generally has a clear connection to text answers.

0 ptsDeveloping

Submission is disorganized, missing several pieces of information, and generally difficult to read. SPSS output unclear in its organization and possibly missing.

2 pts
Total Points: 5
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