Reference no: EM132847209
Researchers wondered how they could increase the number of people who turn off the light by use of posters. In one, an image of a light bulb was anthropomorphized by giving it eyes, nose, and a mouth, as well as adding the words, "I'm burning hot, turn me off when you leave!". In a second, the text simply said, "Our bulbs are burning hot, turn the lights off when you leave!".
They compared how people would respond to the two posters by having each displayed in separate rooms for two weeks. Although the rooms were different, they were matched as closely as possible on as many parameters as possible (similar business, # of employees, et cet) such that this is a correlated groups design. Percent likelihood of someone turning off the light upon exiting was calculated every day and is presented below. Select and conduct the most appropriate statistical test based on the premise that all assumptions are met for a parametric test and this is a correlated groups design. Determine whether there is a difference in likelihood of turning off the light based on the poster campaign.
Anthropomorphism Nonanthropomorphism
87.2 76.3
78.1 86.2
77.5 76.5
91.9 87.0
86.6 77.6
87.4 86.8
76.5 76.2
65.7 65.2
88.3 55.4
57.5 51.7
68.6 61.8
67.9 53.7
73.5 62.9
77.7 57.6
1) Paste appropriate SPSS output.
2) Paste the appropriate SPSS graph.
3) Calculate the effect size. Show all of your work. Is it considered "small", "medium", or "large"?
4) Write results based on your analysis. Include a decision about the null hypothesis.
5) If the assumptions had been violated, what would the most appropriate statistical test be?
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