STA 304H1F-1003H Winter 2020 Assignment 2-Question 2 Question 2. ( 12 marks} Suppose that a city has Q dwelling units, of which 35W are houses, 45mm are apartments, and l are condominiums. We want to estimate the overall proportion {p} of households in which energy conservation is practiced, with a hound on the error of estimation equal {11. [a] {4 marks} Find the strata sample sizes, n1, n.2, and H3, and the sample size n. {h} {4 marks} Suppose that from an earlier study, we know that ass. of house dwellers, 23% of appartment dwellers, and 3% of condominum residents practice energy conservation. Using the appropriate allocation method, Find the sample size n, and strata sample sizes, 111,112, and n3. {1:} {4 marks] Suppose the cost for obtaining an observation is $ 9 for houses, ME for appartment, and 16 $ for condominiums. We also assume that from an earlier study, we lmow that 4?% of house dwellers, 23% of appartment dwellers, and 3% of condominum residents practice energy conservation. Find the strata sample sizes, snug, and g, and the sample size n