In a sample of firms that provide blogs and forums as marketing tools, the mean number of

Question:

In a sample of firms that provide blogs and forums as marketing tools, the mean number of blogs/forums per site was 4.25, with a standard deviation of 12.02.
a. Provide an interval that is likely to contain the number of blogs/forums per site for at least 75% of the Fortune 500 firms in the sample.
b. Do you expect the of the number of blogs/ forums to be symmetric, skewed right, or skewed left? Explain.
For Information: Refer to the Journal of Relationship Marketing (Vol. 7, 2008) study of the prevalence of blogs and forums at Fortune 500 firms with both English and Chinese Web sites, Exercise 2.9.
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