Exam (167).pdf - Question In the table below are data collected between 1996 and 1998 on ear piercing and tattoos for male Penn State students Assume

Exam (167).pdf - Question In the table below are data...

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Question: In the table below are data collected between 1996 and 1998 on ear piercing and tattoos for male Penn State students. Assume that these men represent a random sample of male Penn State students. The results 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 proportions of men with a tattoo for the populations with and without an ear piercing. Write a sentence interpreting the interval. Answer : Here is a data summary of a group of male students' ear piercings and tattoos. Data Summary of Ear Piercings and Tattoos for College Males Tattoo? Ear Piercing? No Yes Totals No 381 43 424
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Yes 99 42 141 Totals 480 85 565 (a) We will use the TI-84 Plus calculator to compute the 90% confidence interval for , the population proportion of males with tattoos who do not have an ear piercing. Press Stat, scroll to Tests, and choose Option A (1-PropZInt). Enter
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  • Spring '17
  • John DOe
  • Body modification, Body piercing, Body art, earring, Population of Men, C-level

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