A random sample of n = 4 scores is obtained from a population with a mean of µ = 80 and a standard deviation of ? = 10 . If the sample mean is M = 90, what is the z-score for the sample mean?
a. z = 20.00 c. z = 2.00
b. z = 5.00 d. z = 1.00
C
Psychology
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a ventral root contains all motor nerve fibers; a dorsal root contains all sensory nerve fibers
a. true b. false
Psychology
Freud ascribed which four components to impulse?
A) id, ego, superego, libido B) Eros, Thanatos, Life, Death C) source, aim, impetus, object D) unconscious, subconscious, preconscious, conscious
Psychology
Socio-economic status and cultural belief systems are an example of ______ factors that might influence pathological behaviors.
a. cognitive b. sociocultural c. behavioral d. biological
Psychology
Children and adolescents whose BMI is at or above the ________ percentile are classified as overweight.
A. 85th B. 95th C. 97th D. 80th
Psychology