Descriptive Statistics
(a) How many students participated in this study? What symbol would you use to represent this value?
(b) How many students picked scissors? What sample proportion of students in your class picked scissors? What symbol would you use to represent this value?
(c) What kind of graph would you use to graphically display the sample results?
An article published in College Mathematics Journal (Eyler, Shalla, Doumaux, and McDevitt, 2009) found that players tend to not prefer scissors, choosing it less than 1/3 of the time. We will investigate whether your data suggest that students at your school tend to choose scissors less than one-third of the time.
(d) Is your class's sample proportion smaller than the proportion we'd expect to see if people were choosing equally and randomly among the three gestures? In other words, is the sampel proportion in the direction conjectured by the researchers?
