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e Ratio and regression estimation 1 Which of the following statements Is true Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a __ Regression estimation adjusts the mean estimated from an SRS by a multiplicative factor and ratio estimation by an additive factor b Regression estimation adjusts the estimated mean from an SRS by an additive factor and ratio estimation by a multiplicative factor c Regression estimation and ratio estimation adjust the estimated mean by a multiplicative factor. d__ Ratio estimation and regression estimation adjust the estimated mean by an additive factor