When the paired t is used on data which are really independent, there is an
increased likelihood of
a. Failing to reject Ho
b. rejecting Ho
c. committing the Type 1 error
d. none of these
a
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REM sleep is beneficial because the locus coeruleus is ____ during that sleep stage, which improves the functioning of neurons that use ____ in the brain
a. ?active; norepinephrine b. ?active glutamate c. ?inactive; norepinephrine d. ?inactive; glutamate
Compared to authoritarian and permissive parents, authoritative parents tend to have adolescents who:
a. have more autonomy and greater self-esteem b. have fewer behavioral problems c. are more competent d. are more conforming
Which of the following statistics is correct?
a. Gay and lesbian parents are raising 25% of all adopted children in the United States. b. More than half of lesbians have given birth. c. One out of every three gay men have fathered or adopted a child. d. More than 50% of gay men want to have a child.
What is the probability of getting a sample mean between 500 and 520 if the population mean is 500 and the standard deviation of the sampling distribution (the standard error of the mean) is 20?
a. 0.5000 c. 0.3413 b. 0.4332 d. 0.1915