Analysis of variance should be conducted only when
A) sample sizes are greater than 30 per group.
B) sample sizes are smaller than 30 per group.
C) population variances can be assumed to be equal.
D) population sizes are approximately equal.
C
You might also like to view...
What is the foreign language effect?
a) The challenges faced in one's primary language due to the difficulty in speaking a foreign language b) A temporary decline in the thinking ability of people who are using a foreign language in which they are less proficient than their native tongue c) A superficial cognitive retardation due to the concomitant confusion of multilingualism d) The shift in the thinking in one's primary language due to the effects of speaking a foreign language
Due to recent findings of possible increased risk of suicide and self-harm of young people using SSRIs to treat depression, the FDA has mandated ____
a. parents be well-informed and monitor their children closely b. warning labels on medication and patient education guides c. that children and adolescents should not be prescribed SSRIs d. that SSRIs be prescribed in combination with psychotherapy
Which of the following statements is true of prelinguistic vocalizations?
A) Babies' babbling frequently combines consonants and vowels. B) During the second month, babies begin babbling. C) Crying is a representation of language. D) Unlike crying, babbling and cooing are prelinguistic.
Opportunistic infections occur:
a. only in individuals with HIV b. only in individuals with AIDS c. when an immune system damage is more severe d. in people with normal immune systems