What is a neurotransmitter?
a. A pattern of brain activity
b. A machine
c. A chemical
d. A location
c
Psychology
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The raw score distribution always assumes a
a. mean of 50 and an SD of 10 b. mean of 100 and an SD of 15 c. mean of 0 and an SD of 1 d. none of these
Psychology
Sampling distributions help us test hypotheses about means by
a. telling us exactly what the population mean is. b. telling us how variable the population is. c. telling us what kinds of means to expect if the null hypothesis is true. d. telling us what kinds of means to expect if the null hypothesis is false.
Psychology