Asingle sample is being used to construct a 90% confidence interval for the population mean. what would be the difference between an interval for a sample of n = 25 and the interval for a sample of n = 100? assume that all other factors are held constant. with n = 25, the standard error would be smaller and the interval would be wider. with n = 25, the standard error would be smaller and the interval would be narrower. with n = 25, the standard error would be larger and the interval would be wider. with n = 25, the standard error would be larger and the interval would be narrower.