Suppose a sample of farmers is to be selected for


Suppose a sample of farmers is to be selected for estimating the cost of cultivation of maize per hectare. The precision is to be within 20 birr with 95% confidence level. From a post survey, it is known that the population (farmers’ cost of cultivation) is estimated to vary in average by 250 birr from an average cost of one farmer?

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Basic Statistics: Suppose a sample of farmers is to be selected for
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