Exhibit 12.7 The heights (in cm) for a random sample of 60 males were measured.The sample mean is 166.55,the standard deviation is 12.57,the sample kurtosis is 0.12,and the sample skewness is -0.23.The following table shows the heights subdivided into non-overlapping intervals. 
Refer to Exhibit 12.7.The heights are subdivided into five intervals.The degrees of freedom for the goodness-of-fit test for normality is:
Definitions:
Generalized Anxiety Disorder
An anxiety disorder in which a person is continually tense, apprehensive, and in a state of autonomic nervous system arousal.
Autism Spectrum Disorder
A developmental disorder characterized by difficulties with social interaction and communication, and by restricted and repetitive behavior.
Clinician Agreement
The level of consistency or concordance in observations, diagnoses, or treatment decisions between multiple healthcare professionals.
DSM-5 Categories
DSM-5 Categories outline a classification of mental disorders by defining diagnostic criteria and symptoms, as described in the Fifth Edition of the Diagnostic and Statistical Manual of Mental Disorders.
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