Which of the following is a parametric inferential statistical test of the null hypothesis for a single sample where the population variance is not known?
a. z test
b. t test
c. Cohen's d
d. The standard error of the mean
b
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Infants who are younger than 6 months of age
a. do not need to experience speech sounds in their environment to be able to discriminate them. b. must experience speech sounds in their environment to be able to discriminate them. c. can discriminate only the sounds found in their native language. d. cannot discriminate any speech sounds which explains why they cannot talk.
Sandra has significantly below average intelligence,
but is able to tell you the exact day of the week for any given day in any given year as well as knowing all the zip codes and area codes in the United States. She has a. pseudo-giftedness. b. a schizotypal personality. c. Klinefelter's syndrome. d. savant syndrome.