Posted by **Shirl** on Tuesday, November 29, 2011 at 2:45pm.

T test for independent groups and dependent groups (Two-group designs)

1. An LU professor is interested in whether there is a difference between undergraduate students and graduate students in the amount of time spent praying each day. The professor gathers information from random samples of undergraduate and graduate students on the LU campus. The amount of time praying is normally distributed and is measured on an interval/ratio scale.

Graduate Undergraduate

15 9

17 11

10 9

13 6

11 5

17 6

a. What statistical test should be used to analyze the data?

b. Is this a one- or two tailed test?

c. Identify H0 and Ha for this study.

d. Conduct the appropriate analysis. Should H0 be rejected?

- university of phoenix -
**SraJMcGin**, Tuesday, November 29, 2011 at 6:08pm
University of Phoenix does NOT give us the School Subject. We are not associated with any textbook, etc. so we don't know what you have in that area.

Please look to the red menu, upper-left, and select one of the School Subjects listed there.

Sra

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