what is the z critical and why is it not 1.96??
we want to test if breathing exercse reduce state anxiety.
Note the word reduces , making it directional
this is left tailed test , not two-tailed test .
hence
critical value at 0.05 signifinance level = P(Z< z) = 0.05
z = -1.645
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what is the z critical and why is it not 1.96?? Rotsenc Pelenis Hame 500 1-)...
ame:-Amanda znao Person # Recitation Exercise-Chapter b 1.) A clinician has developed a set of breathing exercises aimed to treat acute anxiety in individuals with Panic Disorder (PD). She has all of her clients with PD complete the State-Trait Ansiety I immediately after a panic attack. She then computes a population mean of state anxiety. A sample of TO clients with PD is instructed to engage in the breathing exercises during the panic attacka the inventory afterwards. Testing at the...