In a hypothesis test for the difference in two population means, the statistic is the difference in the two sample means. What is the value of the statistic? -4.9 -0.3 Incorrect. You used the sample standard deviations instead of the sample means. Also, we defined population 1 as young men and population 2 as older men. Keep these definitions in mind when calculating the difference in sample means. 0 +0.3 +4.9