When testing for the differences between two averages the s1 in the formula stands for:

When testing for the differences between two averages the s1 in the formula stands for:

When testing for the differences between two averages the s1 in the formula stands for:











A) the size of sample 1
B) survey 1
C) the average of sample 1
D) standard deviation of sample 1
E) standard error of sample 100












Answer: D