# Use the following for questions 1 3 a 95 confidence

• Test Prep
• 44
• 99% (143) 142 out of 143 people found this document helpful

This preview shows page 30 - 32 out of 44 pages.

Use the following for questions 13:A 95% confidence interval forp,the proportion of all shoppers at a large grocery store whopurchase cookies, was found to be (0.236, 0.282).1.The point estimate and margin or error for this interval are:(a) Point estimate = 0.236; Margin of error = 0.282(b) Point estimate = 0.236; Margin or error = 0.046(c) Point estimate unknown; Margin of error = 0.023(d) Point estimate = 0.259; Margin or error = 0.046(e) Point estimate = 0.259; Margin of error = 0.023
2.Which of the following is a correct statement?
3.Which of the following would be true about a 98% confidence interval constructed using thesame data?
4.The government claims that students earn an average of \$4500 during their summer breakfrom studies. A random sample of students gave a sample average of \$3975, and a 95%confidence interval was found to be \$3525 <μ< \$4425. Which of the following is a correctinterpretation of 95% confidence?
© 2011 BFW PublishersThe Practice of Statistics, 4/e- Chapter 8389

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 44 pages?

Course Hero member to access this document

Term
Spring
Professor
N/A
Tags
BFW Publishers
• • • 