Question:In the table below are data collected between 1996 and 1998 on earpiercing and tattoos for male Penn State students. Assume that thesemen represent a random sample of male Penn State students. Theresults were as follows:a. For the population of men with no ears pierced, find a 90%confidence interval for the proportion with a tattoo.b. For the population of men with an ear pierced, find a 90%confidence interval for the proportion with a tattoo.c. Find a 99% confidence interval for the difference in proportionsof men with a tattoo for the populations with and without an earpiercing. Write a sentence interpreting the interval.Answer :Here is a data summary of a group of male students' ear piercingsand tattoos.Data Summary of Ear Piercings and Tattoos for College MalesTattoo?Ear Piercing? NoYes TotalsNo38143424
Yes9942141Totals48085565(a) We will use the TI-84 Plus calculator to compute the 90% confidence intervalfor, the population proportion of males withtattoos who do nothave an earpiercing. Press Stat, scroll to Tests, and choose Option A (1-PropZInt). Enter
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Body modification, Body piercing, Body art, earring, Population of Men, C-level