River Pollution by Heavy Metals and Associated Impacts on the Adjacent Community, the Case of Holeta and Golli Rivers, Holeta Town, Ethiopia

Table 3

Total population and sample size of the respondents from the three flower farms.

S.No	Name of flower farm	Total no. of flower farm workers	Estimation of sample size	Sample size
1	Oromia wonders PLC	360	132 × 360/600 = 78.6	79
2	Ethio-Dream flowers PLC	90	132 × 90/600 = 19.65	20
3	Euro flora PLC	150	150 × 131/600 = 32.75	33
Total		600		132