Suppose you collected data on the average weekly snowfall at Breckenridge for 18 weeks (N=18) over the winters of 2011 and 2012, and found that the sample mean was 4.2 inches with an estimated standard error of SE = 1.12. Assume the population data are normally distributed. Provide an estimate of the mean and the variance of the population distribution of weekly wintertime Breckenridge snowfall using your sample. (Hint: you need to use sample mean y bar and its standard error to estimate the population mean and variance of its distribution).