In a Harris poll of 514 human resource professionals, 45.9% said body piercings and tattoos were big

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In a Harris poll of 514 human resource professionals, 45.9% said body piercings and tattoos were big grooming redflags.

a. Among the 514 human resource professionals who were surveyed, how many of them said body piercings and tattoos were big grooming redflags?

b. Construct a 99% confidence interval estimate of the proportion of all human resource professionals believing body piercings and tattoos are big grooming redflags.

c. Repeat part (b) using a confidence level of 80%.

d. Compare the confidence intervals from parts (b) and (c) and identify the interval is wider. Why is it wider?

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Elementary Statistics

ISBN: 9780321836960

12th Edition

Authors: Mario F. Triola

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Question Posted: May 03, 2015 08:54 AM

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In a Harris poll of 514 human resource professionals, 45.9% said body piercings and tattoos were big

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a 5140459 236 b c d The 95 confidence interval is ...View the full answer

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