The television producer wishes to sample viewer preferences of 4 age groups: teenagers from 13 to 18 years old: under 13 years old; adults from 18 to 60 years old: and adults sixty years old and over. Estimated total number of viewers is 1,200,000 of which 168,000 are under thirteen years old: 264,000 are from 13 to 18: 540,000 are between 18 and 60: and 228,000 are over 60. Sample will include of 2200 people. If stratified sampling is used:
i) Find number of adults between 18 and 60 years old will be sampled?
ii) Find number of people under 18 years old will be sampled?