24_ Bob draws a simple random sample from an original population where the standard deviation is known to be σ = 13. The sample size is n = 85 and the sample mean turns out to be €26. Find a 99% confidence interval for the population mean μ. A. (22.368, 29.632) B. (21.374, 28.441) C. (23.629, 30.837) D. (25.375, 26.984)
25. Bob draws a simple random sample from an original population. The sample size is n = 51, the sample mean turns out to be €78, and the sample standard deviation turns out to be s = 14. Find the 95% confidence interval for the population mean μ. A. (74.062, 81.938) B. (74.062, 83.948) C. (74.062, 85.958) D. (74.062, 87.968)