We predict that children exhibit more aggressive acts after watching a violent television show. The scores for ten participants before and after watching the show are

(a) Subtracting before from after, what are H0 and Ha?
(b) Compute tobt
(c) With a = .05, what is tcrit?
(d) What should the researcher conclude about this relationship?
(e) Compute the appropriate confidence interval.
(f) How large is the effect of violence in terms of the difference it produces in aggression scores?

Transcribed Image Text:

Sample I (After) Sample 2 (Before) 0