In a t test for independent means, the weighted average of the estimates of the population variance from two samples is known as the:
A) estimate of sample standard deviation
B) primed estimate of population standard deviation
C) pooled estimate of population variance
D) pooled estimate of degrees of freedom
C
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When a subpopulation can be distinguished by behavioral, cultural, or organizational characteristics, this subpopulation constitutes a(n):
a. race b. ethnic subpopulation c. ethnic caste d. a and c e. none of the above
The report of a study of "best practices" interventions when working with the parents of autistic children indicates that probability of intervention "A" leading to a successful result is p<.05. What research approach was most likely used in this study
a. Quantitative research b. Historical research c. Narrative case evaluation d. Qualitative research
The U.S. Census Bureau projects that early in the next century, crude death rates will equal crude birthrates for the world's more developed countries
Indicate whether the statement is true or false
Puja decides to make a change and cut her hair very short. To maintain her feminine look, she wears a dress, big earrings, and lots of makeup. Puja is
a. naturalizing b. minimizing c. doing sex d. doing gender