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Question: The New York Times reported (L. J. Flynn, Tax Surfing, The New York Times, March 25, 2002, p. C10) that the mean time to download the home page for the Internal Revenue Service, www.irs.gov, is 0.8 second. Suppose that the download time is normally distributed with a standard deviation of 0.2 seconds. What is the probability that a download time is

a. less than 1 second?

b. between 0.5 and 1.5 seconds?

c. above 0.5 second?

d. 99% of the download times are above how many seconds?

e. 95% of the download times are between what two values, symmetrically distributed around the mean?

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