Chapter 8.3, Problem 26BSC

Testing Claims About Proportions. In Exercises 9-32, test the given claim. Identify the null hypothesis, alternative hypothesis, test statistic, P-value or critical value(s), conclusion about the null hypothesis, and final conclusion that addresses the original claim. Use the P-value method unless your instructor specifies otherwise. Use the normal distribution as an approximation to the binomial distribution (as described in Part I of this section).

26. Job Interviews In a Hams poll of 514 human resource professionals, 45-9% said chat body piercings and tattoos were big grooming red flags. Use a 0.01 significance level to test the claim that less than hall of all human resource professionals say that body piercings arc big grooming red flags.