What is true about the population parameters?

A. It is used in a t-test.
B. It is used in a z-test.
C. Both are correct.
D. Both are incorrect.

Answer: D. Both are incorrect.

Psychology

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Before an infant has understood the idea of ____________, he will not search for an object that has been hidden right before his eyes

a. object stability c. object permanence b. object mobility d. object constancy

Psychology

What term do we use for data that describe the frequency of a disorder at a particular point in time?

a) incidence b) prevalence c) longitudinal d) experimental

Psychology