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Normal approximation for the wilcoxon signed-ranks

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Reference no: EM132848422

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

-4 +12
+10 +9
+20 -7
-3 -2
-1 +15
+13 +14
+6 -8
+5 +11

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: EM132848422

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