Part 1

The dataset below was collected by a researcher who wants to know whether the amount of stress is different for three groups of employees. Group 1 employees work the midnight - 8am shift, Group 2 employees work the 8am - 4pm shift, and Group 3 employees work the 4pm - midnight shift. The null hypothesis is that there is no difference in the amount of stress between groups. Test this in SPSS and provide your conclusion.

SHIFT	STRESS	SHIFT	STRESS
4pm - midnight	7	Midnight - 8am	5
4pm - midnight	7	Midnight - 8am	5
4pm - midnight	6	Midnight - 8am	6
4pm - midnight	9	Midnight - 8am	7
4pm - midnight	8	Midnight - 8am	6
4pm - midnight	7	8am - 4pm	1
4pm - midnight	6	8am - 4pm	3
4pm - midnight	7	8am - 4pm	4
4pm - midnight	8	8am - 4pm	3
4pm - midnight	9	8am - 4pm	1
Midnight - 8am	5	8am - 4pm	1
Midnight - 8am	6	8am - 4pm	2
Midnight - 8am	3	8am - 4pm	6
Midnight - 8am	5	8am - 4pm	5
Midnight - 8am	4	8am - 4pm	4
Midnight - 8am	6	8am - 4pm	3
Midnight - 8am	5	8am - 4pm	4
Midnight - 8am	4	8am - 4pm	5

Part 2

Using the dataset below in SPSS, answer the following questions about an analysis of whether level of stress and gender have an impact on caffeine consumption (measured as cups of coffee per day).

1. 1. Is there a difference among the levels of caffeine consumption for the high-stress, low-stress, and no-stress groups?
   2. Is there a difference between males and females, regardless of stress group?
   3. Are there any interactions?

GENDER	CAFF_CONSUMPTION	STRESS
1	5	1
1	6	3
2	7	3
1	7	2
1	5	3
1	6	1
1	8	2
1	8	2
2	9	1
2	8	1
2	9	1
2	7	2
2	4	1
2	3	1
1	0	1
2	4	2
1	5	1
2	6	2
1	2	2
1	4	3
1	5	3
2	5	3
1	4	2
1	3	2
1	7	3
2	8	2
1	9	2
1	11	1
1	2	2
1	3	1