Concept explainers
The annual NFL Super Bowl is the most widely watched sporting
For the 30-seond ads the 60-second ads separately:
a. Construct a
b. Interpret the interval constructed in (a).
c. What conclusions can you reach about the ad scores of 30-second and 60-second ads?
d. What assumption must you make about the population distribution in order to construct the confidence interval estimate in (a)?
e. Do you think that the assumption needed in order to construct the confidence interval estimate in (a) is valid? Explain.
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Basic Business Statistics, Student Value Edition
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