In practice,what is the first step in interpreting the t-test when comparing two means?
A)compute the t-test value
B)find the p-value associated with the t and the corresponding degrees of freedom
C)examine the difference in means to find the "direction" of any difference
D)examine if there is a difference at the 50 percent confidence interval before examining the 95 percent confidence interval

Question

Quizplus · Accepted Answer

Examining the difference in means to find the "direction" of any difference is usually the first step in interpreting the t-test when comparing two means. This involves looking at whether the means are higher or lower in one group compared to the other. This can give an indication of whether there is a significant difference between the groups, and in which direction this difference is. Once this has been established, the t-test value and p-value can be computed to determine the significance level of the difference. The confidence interval is typically examined after the significance of the difference has been established.

In Practice,what Is the First Step in Interpreting the T-Test