All of the following are true regarding the standard error of a coefficient except which one?
A) A small standard error suggests that the estimated coefficient is likely to be close to the true value.
B) A large standard error suggests that the estimated coefficient is likely to be close to the true value.
C) The standard error reflects the fact that the estimated coefficients have random element.
D) The standard error of a coefficient measures how much the estimated coefficient is likely to change if another set of data is used to reestimate the regression.
B) A large standard error suggests that the estimated coefficient is likely to be close to the true value.
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If the price of avocados increases, which of the following will occur?
A) There will be a movement down the supply curve for avocados. B) The supply curve for avocados will shift to the right. C) There will be a movement up the supply curve for avocados. D) The supply curve for avocados will shift to the left.
Scientists continue to debate the relationship between two Homo fossil finds: KNM-ER 1470, named H. rudolfensis by some, and KNM-ER 1813, generally considered to be an exemplar of H. habilis. Is the smaller KNM-ER 1813 a distinct species? Could it be a female version of KNM-ER 1470, both being simply a female and male pair of the highly variable H. habilis? The only sure conclusion is that
A. KNM-ER 1470 is more like an australopith than a Homo. B. no hominin fossil younger than 2.5 m.y.a. has exhibited chimplike features. C. several different kinds of hominin lived in Africa before and after the advent of Homo. D. there is a trend in hominin evolution toward large molars. E. females are poorly represented in the hominin fossil record.
What do anthropologists mean by the term "patterns of behavior"?
What will be an ideal response?
The potlatch, as practiced by the Northwest coastal American Indians, served to do all of the following EXCEPT _____
a. show preservation of physical resources b. confer status on generous givers c. distribute material goods to a wide range of people d. maintain regional stability e. measure prestige of the host