Question: In order to monitor the ecological health of the Florida Everglades, various measurements are recorded at different times. The bottom temperatures are recorded at the Garfield Bight station and the mean of 30.4 degrees C is obtained for 61 temperatures recorded on 61 different days. Assuming that standard deviation is 1.7 degrees C, find a 95% confidence interval estimate of the population mean of all such temperatures. What aspect of this problem is not realistic?