Mean number of brand names

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Branding, part 2. In the study described in Exercise 54, 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.

June	54 49 68 66 62 62	Mean	3.02	2.72	4.65
August	50 65 74 64 68 72	SD	1.61	1.85	1.62

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.

Reference no: EM131008394

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