Retirement Funds for.xIsx 53 KB Click to see additional instructions 29. Using the file Retirement Funds for.xIsx (attached) calculate the Mean 10 yr return: and standard deviation34. If the p is low, the null hypothesis must41. Which of the following statements the most correct, most technically, formally correct concerning a 95% confidence interval? (In practice we may be less formal.) A. There is a 0.95 probability that the population parameter of interest is contained within the interval. B. In computing confidence intervals from 20 samples, 19 of the intervals would contain the population mean. C. If you were to produce all possible confidence intervals using the sample mean of each sample of a given size from the population, then 95% of the intervals would contain the population mean. O D. There is a 0.05 probability the population parameter of interest is not contained within the interval Reset Selection