Use technology and the given confidence level and sample data to find the confidence interval for the population mean mu. assume that the population does not exhibit a normal distribution. weight lost on a diet: 90 % confidence n equals 61 x overbar equals 4.0 kg s equals 6.8 kg what is the confidence interval for the population mean mu? nothing kgless thanmuless than nothing kg (round to one decimal place as needed.) is the confidence interval affected by the fact that the data appear to be from a population that is not normally distributed? a. yes, because the population does not exhibit a normal distribution. b. no, because the population resembles a normal distribution. c. no, because the sample size is large enough. d. yes, because the sample size is not large enough.