Multiple Choice
A researcher records the following response times to a visual stimulus: 23 ± 3.1 (M ± SD) s.Assuming these data are normally distributed,what is the probability that participants responded in 20 s or less?
A) .1660
B) .3340
C) .6660
D) The probability is not listed in the unit normal table.
Correct Answer:

Verified
Correct Answer:
Verified
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