question 6 and 7

The three-toed sloth is a slow-moving herbivore indigenous to Central America. Peruvian wildlife biologists have determined that on average, the typical three-toed sloth sleeps for 16.5 hours per day. Also native to Peru, Erythroxylum coca is a plant known to have strong stimulant properties. In habitats rich in coca, three-toed sloths are known to snack on its leaves on a regular basis. A Colombian zoologist, Pablo, wants to show that three-toed sloths that regularly snack on coca leaves sleep less than average. He randomly samples 40 three-toed sloths with coca-rich diets and fits them with fitness tracking devices. He tracks their sleep patterns for a day and records that, on average, these sloths sleep 16 hours per day with a standard deviation of 1.3 hours. When he plots the data, it is unimodal and symmetric. Let u be the average nightly sleep of a three-toed sloth on a coca-rich diet. Which set of hypotheses is appropriate to conduct Pablo's statistical test? (1) Ho : H = 16.5 vs. HA : M > 16.5 (2) Ho : x = 16.5 vs. HA : X