problem Interpretation Module 4/ Part 2

Module 4 SPSS Data Interpretation

Due Date: Oct 28, 2015 23:59:59       Max Points: 20 Details:

An independent t-test compares the mean values of two groups. In this assignment, you will review the SPSS output for an independent t-test and use it to answer questions about the means of the two groups.

General Requirements:

Use the following information to ensure successful completion of the assignment:

· Review "SPSS Access Instructions" for information on how to access SPSS for this assignment.

· Download the document "SPSS Data Set Legend" for use with this assignment.

· Download the document "Module 4 SPSS Output" for use with this assignment.

· Access the PSY-845 folder on the DC Network at https://dc.gcu.edu/documents/tools/researchtools/statistical-research-folder/psy870multivariatestatistics/psy8453adoctoralstatistics helpful information.

Directions:

Review the SPSS output file which reports the results of the independent t-test to compare the mean price per 6-pack for regular vs. reduced calorie brands of wheat beer. Answer the following questions based on your observations of the SPSS output file:

1. Is the F-value for Levene's Test for Equality of Variances significant (that is, is the p < .05)? What is the exact significance level? Note: if the Levene's Test for Equality of Variances is significant, then equal variances cannot be assumed.

2. Which t-value should you use now that you know whether or not equal variances can be assumed? What is that t-value?

3. What is the two-tailed significance level for that t-value? State the exact significance value. Report the results of the t-test as follows: t(df value) = ___, and p-value. 

4. Is there a statistically significant difference between the price per 6-pack of regular beers versus reduced calorie beers?

SPSSAccessInstructions.docx PSY845.R.SPSS Data Set Legend.docx PSY845.R.Output for Mod 4 exercises.docx Drinks.sav