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 std. dev.-1.7 degrees C, test the claim that the population mean is grater than 30.0 degrees C. Use a 0.05 significance level.