One of the unusual things about distribution-free tests is that they are often set up so that
a. they only work with equal sample sizes.
b. the null hypothesis is never assumed to be true.
c. we reject the null hypothesis when our test statistic is too small, rather than too large.
d. they are all named after people.
C
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Which statement about headaches is true?
a. People who suffer from headaches usually only suffer from one specific type. b. Men experience headaches more often than women. c. Negative emotions have been associated with the onset of headaches. d. All three types of headaches have the same causes, although they manifest differently in different people.
Madison lives with her dad, mother, grandmother, aunt, and older brother, Austin. Madison's family is best termed a(n) ___ family household
a. dysfunctional b. nuclear c. reconstituted d. extended
A Pearson correlation of r = +0.25 indicates that a graph of the data would show points ____
a. clustered close to a line that slopes up to the right b. clustered close to a line that slopes down to the right c. widely scattered around a line that slopes up to the right d. widely scattered around a line that slopes down to the right
What is true regarding children with intellectual disability?
A. Most intellectual disability is noticeable in the first two years of life. B. Children with intellectual disability tend to experience more behavioral problems. C. Social development is usually unaffected by intellectual disability. D. Deficiencies in language skills are usually unnoticed until kindergarten.