A pilot survey of 18 households gave the following data for numbers of members of the household (X) an the number of TV sets in the house (Y):Assume i

A pilot survey of 18 households gave the following data for numbers of members of the household (X) an the number of TV sets in the house (Y):Assume is known. Would you use a ratio estimate or a simple random sample estimate for in this case. Justify your answer by looking at the estimated variances of each estimator. Assume that the population number of households is N=1800.

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