In order to discern whether Zweig is doing better than just
guessing (50% correct), we will employ the 3S strategy:
Â a. Statistic: How many times did Zweig pick the correct
object? Out of how many attempts?
Â b. Simulate: Using an applet, simulate 1,000 repetitions of
having Zweig choose between the two objects if she is doing so randomly.
Â c. Based on the value of the statistic from part (a), do
you think the chance model is wrong? Why or why not?
Â d. Strength of evidence: Based on your answers for (a)â€“(c),
state your conclusions about the research question of whether the data provide
convincing evidence that Zweig can correctly follow this type of direction by
an experimenter more than 50% of the time?
Â e. Are the results of this study statistically signify cant
or are the chance model plausible? How are you deciding?