Asample of pulse rates of men and women are used to construct a 95% confidence interval for the difference between the two population means, and the result is negative 12.2 less than mu 1 minus mu 2 less than minus 1.6, where pulse rates of men correspond to population 1 and pulse rates of women correspond to population 2. express the confidence interval with pulse rates of women being population 1 and pulse rates of men being population 2. choose the correct answer below.