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In: Statistics and Probability

An interactive poll found that 352 of 2 comma 232 adults aged 18 or older have...

An interactive poll found that 352 of 2 comma 232 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 95​% 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 the level of confidence on the width of the​ interval?

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