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An interactive poll found that 371 of 2,318 adults aged 18 or older have at least one tattoo. a. obtain a point estimate for the

An interactive poll found that 371 of 2,318 adults aged 18 or older have at least one tattoo.

a. obtain a point estimate for the proportion of adults who have at least one tattoo.

b. construct a 90% confidence interval for the proportion of adults with at least one tattoo.

c. construct a 98% confidence interval for the proportion of adults with at least one tattoo.

d. What is the effect of increasing level of confidence on the width of the interval?

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