1) sample size 320 by selecting a specific sample of 4 national hospital located in the country's sector in each province. Divided storage of each sample equal hospital until the number of examples given by each hospital is 80. Total 320 Description:
1) Select a sample size of 320 patients, a second sample of four hospitals located in each region of the country. The median number of samples collected each hospital as well as the number of samples required. Is at 80 hospitals with a total of 320 cases.
1), sample size 320 cases by using the data of the hospital 4 of, located in the province each region of the country. The collect samples of each hospital rate and sampling time. Is it 80 hospital.The 320 cases.