Help me pleasee

My Favorite Breed! A veterinarian studies a large population of one breed of dogs which is shih tzu. The shih tzu's mean length is 50 inches with standard deviation 26 inches. If a sample of 169 shih tzu are randomly selected, what is the chance that the sample mean is: a. less than 49 incheap b. at least 47 inches? c. between 46 and 48 inches? d. Describe your favorite pet. State at least 3 characteristics your pet possesses