Posted by **Tasha** on Monday, October 31, 2011 at 1:58pm.

This problem does not make any sense to me!!! I would greatly appreciate your assistance, thanks.

A recent survey showed 4.6 percent of the sample of 250 had suffered some kind of identity theft in the past 12 months.

a. Construct a 90 percent confidence interval for the true proportion of those suffering identity theft.

b. Can we assume the distribution of the population is normal? Explain your answer.