Question: Step 3, Question 1 By hand, calculate the test statistic for this test and answer the question below. Show your work. What is the estimated

Step 3, Question 1

By hand, calculate the test statistic for this test and answer the question below. Show your work.

What is the estimated standard error?

a = .05

A sample of n = 585 college students were selected to participate in the study. The mean score on the stress scale for the sample was M = 28.57 with SD = 2.518.

Research Question:

Did the participants in the study score significantly higher on the Stress Subscale pre-treatment than the normal population whose mean is ? = 18.08?

Step 3, Question 1By hand, calculate the test statistic for this test

lable 4 Pretreatment, Post-treatment, and Follow-up Symptoms by Condition Measure Treatment Control Pretreatment Post-treatment Follow-up Pretreatment Post-treatment Follow-up M (SD) M (SD) M (SD) M (SD) M (SD) M (SD) Stress 28.77 (6.12) 22.98 (9.64) 21.77 (9.87) 28.04 (6.15) 23.84 (9.18) 23.57 (9.20) Anxiety 21.11 (9.26) 15.82 (10.81) 15.98 (10.46) 19.84 (9.34) 15.60 (10.17) 15.63 (10.14) Depression 25.83 (10.34) 19.90 (12.32) 19.86 (12.08) 24.31 (10.65) 20.80 (11.98) 20.71 (11.79) Note. N = 585. Stress, Anxiety, and Depression scores had a possible range of 0-42

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