(a) The management of a cinema wanted to predict what additional refreshment options would sell well. They selected 100 seat numbers from the hall at random and surveyed the occupants of those seats. From the statement, (i) identify the population of interest. (1 mark) (ii) identify the sample that was collected. (1 mark) (iii) identify the sampling method applied. (1 mark) (b) Identify the sampling technique used in each of the situation below. (i) A survey was done to determine the age, weekly frequency and the amount of time residents use the local part in Kota Damansara. The first house in the neighborhood around the park was selected randomly and then every fifth house in the neighborhood around the park was interviewed. (1 mark) (ii) A sociologist conducts an opinion survey in a major city. Part of the research plan calls for describing and comparing the opinions of four different ethnic groups: Bumiputera, Chinese, Indian and Non-Malaysia resident. The researcher selects 185 participants of Bumiputera, 63 participants of Chinese, 19 participants of Indian and 33 participants of Non-Malaysia resident