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Thirty anorexic girls were treated with cognitive behavioral

Thirty anorexic girls were treated with cognitive behavioral therapy (CBT). They were weighed before and after the treatment. The weight gains, which are positive scores, and weight losses, which are negative scores, are given below. A gain of more than zero pounds would confirm whether the treatment worked. Did the group gain more than zero pounds?

Data:

1.7 0.7 -0.1 -0.7 -3.5 14.9 3.5 17.1 -7.6 1.6
11.7 6.1 1.1 -4.0 20.9 -9.1 2.1 -1.4 1.4 -0.3
-3.7 -0.8 2.4 12.6 1.9 3.9 0.1 15.4 -0.7 0

Report the appropriate null and research hypotheses and the critical value
(alpha = 0.05). In addition, provide your statistical conclusion, including calculation of test statistic, in the APA format and conceptual conclusion in one to two sentences.

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Thirty anorexic girls were treated with cognitive behavioral therapy (CBT). They were weighed before and after the treatment. The weight gains, which are positive scores, and weight losses, which ...

Solution Summary

Thirty anorexic girls were treated with cognitive behavioral therapy (CBT). They were weighed before and after the treatment. The weight gains, which are positive scores, and weight losses, which are negative scores, are given below. A gain of more than zero pounds would confirm whether the treatment worked. Did the group gain more than zero pounds?

Data:

1.7 0.7 -0.1 -0.7 -3.5 14.9 3.5 17.1 -7.6 1.6
11.7 6.1 1.1 -4.0 20.9 -9.1 2.1 -1.4 1.4 -0.3
-3.7 -0.8 2.4 12.6 1.9 3.9 0.1 15.4 -0.7 0

Report the appropriate null and research hypotheses and the critical value
(alpha = 0.05). In addition, provide your statistical conclusion, including calculation of test statistic, in the APA format and conceptual conclusion in one to two sentences.

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