微信扫一扫
实时资讯全掌握
|
Based on Student's t-distribution, the 95% confidence interval for the population mean based on a sample of 40 interest rates with a sample mean of 4% and a sample standard deviation of 15% is closest to: A. -0.851% to 8.851%. B. 1.261% to 6.739%. C. -0.794% to 8.794%. |