What can we conclude when the absolute value of a z-score for a sample mean is larger than the critical value?
a. The random selection procedure was conducted improperly.
b. The sample mean is reasonably likely to have come from the given population by random sampling.
c. The sample mean represents the particular raw score population on which the sampling distribution is based.
d. The sample mean does not represent the particular raw score population on which the sampling distribution is based.
Question 2
What can we conclude about a sample mean that is found to lie in the region of rejection? It is extremely _____ to have occurred by chance, and it represents _____.
a. unlikely; the population c. unlikely; some other population
b. likely; the population d. likely; some other population
Compared with modern humans, Homo erectus has a larger face, lacks a chin and canine fossa, and has
Absolute Thresholds
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What is the estimated age of the archaeological sample