Normal approximation for the wilcoxon signed-ranks

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Practitioners measured spiritual well-being (SWB) in a sample of 16 adults who were alcoholic before and following treatment for alcoholism.

Change in SWB

Following Treatment

+11 +12
+10 -2
+7 +9
-1 -5
+13 -4
+15 -6
+2 -8
-3 +14

Use the normal approximation for the Wilcoxon signed-ranks T test to analyze the data above. (Round your answer to two decimal places.)
z =

State whether to retain or reject the null hypothesis. (Assume alpha equal to 0.05.)

Retain the null hypothesis.

Reject the null hypothesis.

Reference no: EM132848237

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