# 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?