I need help with this statistics question, I have been struggling with it and I need help, please don't flag it if you can't help, I'm just trying to get homework help.

8.13 Approximately 45% of patients with tuberculosis are actually treated in a country [7]. In a remote village, where has 847 residents, and 65 people have been diagnosed with TB. Among those who have been diagnosed as TB, 19 of them have received anti- tuberculosis treatment. Using normal approximation approach to answer the following two questions. a) If the prevalence rate of TB is 8.1% national wide, is the prevalence rate in this village different from that of national wide? b) Test whether people with TB in this village have been treated less likely than people in other part of the country