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Alex visually inspects their data before analyzing it, only…

Alex visually inspects their data before analyzing it, only to find that the populations that they sampled appear to have very different variances although her sample sizes are equal. Which assumption of ANOVA have they violated, and what should they do?

(Table: Abuse) In a study of simulated juror decision making…

(Table: Abuse) In a study of simulated juror decision making, Braden-Maguire, Sigal, and Perrino (2005) investigated the type of verdict assigned by study participants after they read a 12-page summary of a case involving a battered woman who had shot and killed her husband. In particular, the researchers manipulated the race of the defendant (African American or Caucasian) and the type of abuse suffered (emotional or physical). The dependent variable was the number of guilty verdicts. (a) Calculate the chi-square statistic for a test of independence to determine the effects of the type of abuse and the race of the defendant on the number of guilty verdicts, and explain what this result means. (b) Calculate the effect size for this test but you don’t have to explain its meaning. The data appear in the table.Table: Abuse   Emotional Abuse Physical Abuse African American 19 6 Caucasian 16 7  

The following figure reflects the results of a hypothetical…

The following figure reflects the results of a hypothetical study examining levels of “Geekiness” in male and female participants who watched either one or five hours of Star Wars related TV shows on the Disney streaming service. Level of “Geekiness” was assessed after viewing with a short questionnaire.Figure: Star Wars programming and Gender Reference: Ref 14-18 (Figure: Star Wars programming and Gender) Based on the figure, which effects appear to be present?