Question

You decide to add your five newest patients to the study. Two have experienced four childhood traumatic events, and the other three have experienced five childhood traumatic events each. Calculate the new n, ΣX, and M

Answer 1

Explanation:

To calculate the new n (sample size), you need to add the number of new patients to the existing sample size. In this case, there are 5 new patients. So if the previous sample size was n, then the new n would be n + 5.

To calculate ΣX (sum of scores), you need to sum up the childhood traumatic events experienced by all the patients, including the new patients. Let's assume the previous sum of scores was ΣX. For the two patients who experienced four childhood traumatic events, the sum of their scores would be 4 + 4 = 8. For the remaining three patients who experienced five childhood traumatic events each, the sum of their scores would be 5 + 5 + 5 = 15. So the new ΣX would be ΣX + 8 + 15.

To calculate M (mean), you need to divide the sum of scores by the sample size. So the new M would be (ΣX + 8 + 15) / (n + 5).