A 2003 survey showed that 4.8 percent of the 250 Americans surveyed had suffered some kind of identity theft in the past 12 months. (a) Construct a 99 percent confidence interval for the true proportion of Americans who had suffered identity theft in the past 12 months. (b) May normality be assumed? Explain. (Data are from Scientific American 291, no. 6, p. 33.)
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