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**You may work
with on this assignment with a group or alone. You must do this assignment on
campus as this software is only available on RU computers (unless you have
downloaded the SPSS trial to your computer).**

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**The
SPSS Introductory Handout, SPSS
Tutorials and Intro to Data Analysis Handout
will help you with this assignment (the SPSS materials are posted under SPSS
Help and the Intro to Data Analysis Handout was distributed in class and is also
posted to the Class Materials page). Use the Coffee Consumption Data (posted to
the course web site) for this assignment. You can double-click on the file name
to automatically open the file in SPSS (if SPSS is on the computer you are
using) or you can right click on the file name, choose Save Target As, save the
file to your H drive, and then double-click it to open it in SPSS.**

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1. Susan is interested in how much coffee people drink at work. To answer this question, she has 10 individuals record the number of cups of coffee they drink daily at work for 4 days. She also collects an index of job stress and each person’s age. The data file contains the four variables concerning coffee drinking (day1 through day4), the job stress variable (jobstres), and the age variable (age).

A. Create
a categorical age variable named **agecat** with three age categories, 24 and
younger, 25-29, and 30 and older (**hint – you should use the steps under
Recode into a Different Variable from page 8 of the SPSS Introductory Handout**).
Be sure to assign the appropriate variable labels and value labels to this new
field (**hint – refer to the steps under Defining SPSS Variables Yourself,
steps 4 and 5 on page 3 in the SPSS Introductory Handout or review the
Recoding Tutorial posted on
the SPSS Help page**). The variable **agecat** should not contain any
decimal places.

B. Create
a categorical job stress variable named **jobcat** with two categories, 1
(job stress score less than 20) and 2 (job stress score equal to or greater than
20). H**int – you should use the steps under Recode into a Different Variable
from page 8 of the SPSS Introductory Handout or review the
Recoding Tutorial posted on
the SPSS Help page. **Be sure to define the appropriate variable and value
labels for this new field (the value labels should be 1=low stress and 2 = high
stress). Jobcat should contain no decimal places.

C. Create
a new variable called **drinktot** (**hint – you should use the steps under
Computing Variables: Compute Variables Using a Formula on page 5 of your SPSS
Introductory Handout or refer to the
Compute Variable Tutorial on
the SPSS Help page**). ** **This field should be the sum of 4 days coffee
consumption. Don’t forget to assign a variable label to this field.

E. Run descriptive
statistics on the **age** (your original age variable not the new age
variable you created) and **drinktot **fields - **hint: you should use the
steps under Running Descriptives in SPSS on page 11 of your SPSS Introductory
handout or review the
Descriptives Tutorial on the SPSS Help page.** Include the following
statistics: mean, minimum, maximum, range, standard deviation, mean, sum,
skewness, and kurtosis. (1) Based on the output, do you feel more confident
making judgments about age or coffee consumption? Why? (2) How many cups of
coffee, in total, were consumed over the 4 days? (3) What can you say about **
drinktot** based on the skewness and kurtosis statistics?

F. Run a crosstab where the
stub (row) is **jobcat** and the banner (column) is **agecat**. Include
the row, column, and total percentages - - **hint: you should use the steps
under Running Crosstabs in SPSS on page 12 of your SPSS Introductory handout or
review the Crosstabs Tutorial
on the SPSS Help page**. (1) Which age group is experiencing the most job
stress? the least job stress? (2) What percentage of respondents experiencing
high stress are 25 to 29? (3) What percentage of respondents are 25 to 29 and
say they experience low job stress? (4) What percentage of those 25 to 29 say
they are experiencing high job stress?

Print the results from D, E, and F. Be sure to write the answers to any questions asked directly on the appropriate print-out (and please staple or clip the pages together). I will not return this assignment to you so make sure you keep a copy for yourself.