In a poll of 505 human resource professionals, 54.1% said that body piercings an

Question

In a poll of 505 human resource professionals, 54.1% said that body piercings and tattoos were big grooming red flags. Complete parts a through d below. a) Among the 505 human resource professionals who were surveyed, how many of them said that body piercings and tattoos were big grooming red flags? (Round to the nearest integer as needed.) b) Construct a 99% confidence interval estimate of the proportion of all human resource professionals believing that body piercings and tattoos are big grooming red flags. Kps

Explanation / Answer

The statistical software output for this problem is:

One sample proportion summary confidence interval:
p : Proportion of successes
Method: Standard-Wald

99% confidence interval results:

80% confidence interval results:

Hence,

a) 273

b) 99% confidence interval:

0.484 < p < 0.598

c) 80% confidence interval:

0.513 < p < 0.569

d) Option C; 99; 80

Proportion Count Total Sample Prop. Std. Err. L. Limit U. Limit p 273.205 505 0.541 0.022174778 0.48388156 0.59811844

Related Questions

Navigate

• Browse (All)
• Browse I
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.