Given the following equation, the only difference between this and our original equation for z is:

A) the original z required a normal distribution.
B) we have substituted information about differences in place of information about observations.
C) the equations are of the same general form.
D) both b) and c).

Question

Given the following equation, the only difference between this and our original equation for z is:

A) the original z required a normal distribution. 
B) we have substituted information about differences in place of information about observations. 
C) the equations are of the same general form. 
D) both b) and c).

Quizplus · Accepted Answer

The given equation and the original equation for z are of the same general form, as they both involve calculating the difference between two means and dividing by the standard error of the difference. However, the given equation substitutes information about differences in place of information about individual observations, which is different from the original equation that required a normal distribution for z. Therefore, the correct answer is D) both b) and c).

Given the Following Equation, the Only Difference Between This and Our