disregard those claims and depend on estimates of the mean and standard deviation from your sample. 2a. Describe the sample and population you are studying with this data. (This is not given in the data, you have to make up a story about who or what you are studying.) 2b. Calculate the sample mean and sample standard deviation for your variable. Keep at least four decimal places 2c. Calculate the standard error and the margin of error for a 90% confidence interval. Keep at least four decimal places. 2d. Combine these three responses to calculate and interpret a 90% confidence interval for the population mean. Use the format: "The mean of XXX is ###. Therefore I believe the mean of