Fices employees working in open cubicles and

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offices, employees working in open cubicles, and employees working from home). When we must check more than two categories we use F distribution.
3. An honors student wondered whether an education in statistics reduces the tendency to believe advertising that cites data. He compares social science majors who had
taken statistics and social science majors who had not taken statistics with respect to their responses to an interactive advertising assessment.
11.66 Orthodontics and one-way between-groups ANOVA: Iranian researchers studied factors affecting patients’ likelihood of wearing orthodontic appliances, noting that orthodontics is perhaps the area of health care with the highest need for patient cooperation (Behenam & Pooya, 2007). Among their analyses, they compared students in primary school, junior high school, and high school. The data that follow have almost exactly the same means as they found in their study, but with far smaller samples. The score for each student is his or her daily hours of wearing the orthodontic appliance. Primary school: 16, 13, 18 Junior high school: 8, 13, 14, 12 High school: 20, 15, 16, 18 1. What is the independent variable? What are its levels?

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