When conducting a t test for independent means, a typical research hypothesis might be:
A) the mean of Population 1 is greater than the mean of Population 2
B) the mean of Sample 1 is greater than the mean of Sample 2
C) the mean of Sample 1 is the same as the mean of Sample 2
D) the mean of Population 1 is the same as the mean of Population 2
A
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Of the following, which currently causes the most deaths in the less-developed nations?
A. HIV infection B. pneumonia C. influenza D. cholera E. coronary heart disease
The proper comparison distribution for the mean of a sample is called the distribution of means and is used because:
A) comparing the mean of a sample to a population distribution of individual scores is a mismatch B) the available population parameters are inaccurate and reflect too little variance within the population C) the distribution of means is likely to have more varied scores than would be represented in the population D) the proper comparison distribution is stated in the null hypothesis
In the decades since 1968, when the Fair Housing Act was passed with the hope that it would end the racial segregation of American neighborhoods, racial segregation has __________ in most of America's major cities
a. declined steadily b. declined only slightly c. increased steadily d. increased only slightly
The term assimilation is defined by the text as:
a. When a dominant group forces a subordinate group to leave a certain area or even the country. b. The process by which a minority individual or group takes on the characteristics of the dominant culture. c. The theory that prejudice is embedded in our culture. d. The act of singling out an individual because of his or her race.