A cigarette company is interested in the effect of several conditions of smoking on steadiness. They manufacture two brands: Old Zincs and Counts. Furthermore, they make each brand with and without a filter. In the smoking experiment, the higher the score, the greater was steadiness. Assume that the results came out as follows (10 participants per cell). What conclusions did the experimenter reach? With Filter Without Filter Old Zincs 7 2 7 2 8 3 8 3 9 3 9 4 10 4 10 5 11 5 11 5 Counts 2 7 3 7 3 7 3 8 3 9 4 9 4 10 5 10 5 11 6 11 Identify the independent and dependent variables. How many levels of the independent variable(s) are there? Describe the experimental design. Graph the appropriate means. Are there main effects for the independent variable(s)? Is there an interaction effect? If so, describe the nature of the interaction
4. A cigarette company is interested in the effect of several conditions of smoking on steadiness. They manufacture two brands: Old Zincs and Counts. Furthermore, they make each brand with and without a filter. In the smoking experiment, the higher the score, the greater was steadiness. Assume that the results came out as follows (10 participants per cell). What conclusions did the experimenter reach?
With Filter Without Filter
Old Zincs 7 2
7 2
8 3
8 3
9 3
9 4
10 4
10 5
11 5
11 5
Counts 2 7
3 7
3 7
3 8
3 9
4 9
4 10
5 10
5 11
6 11
- Identify the independent and dependent variables. How many levels of the independent variable(s) are there?
- Describe the experimental design.
- Graph the appropriate means.
- Are there main effects for the independent variable(s)?
- Is there an interaction effect? If so, describe the nature of the interaction.
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