Question

In the study described in Exercise 50, the researchers also contacted the subjects again, 24 hours later, and asked them to recall the brands advertised. Results for the number of brands recalled are summarized in the table.
a) Is there a significant difference in viewers’ abilities to remember brands advertised in shows with violent vs. neutral content?
b) Find a 95% confidence interval for the difference in mean number of brand names remembered between the groups watching shows with sexual content and those watching neutral shows. Interpret your interval in this context.


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  • CreatedMay 15, 2015
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