Please help

(5 points) You are doing an internship with Canada Revenue Agency, and your boss has drawn a random sample of households directly from the Income Tax records. This is probably pretty close to a random sample, so you will treat it as if it's a random sample. Your boss wants you to estimate a measure of income inequality using the data. The data contains a variable that measures total household income. Income is only positive so this can't be a normally distributed variable. There is also a fat upper tail. However, if you take the natural log of family income7 it will look much more like a normal variable. You decide to treat the natural log of family income as if it is a normally distributed random variable. Call that variable M. To gauge inequality you decide to estimate "var (M) Your random sample of data has n : 91 observations. The sample mean is 12.435 and the sample variance is 17.345. Use this information to construct a 90% condence interval for var (M) Show your work. Use at least three decimal places in your work