Answer the following statement(s) true (T) or false (F)
Stratification is a modification to rather than an alternative to simple random sampling and systematic sampling.
Ans: T
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The health and safety threats of air pollution have not remained very serious under recent presidential administrations
Indicate whether the statement is true or false
How is the pattern of wealth distribution in the U.S. influenced by race? a. Asians are a "model minority." b. Black families have higher levels of wealth than white families
c. Discriminatory practices in banking and housing have resulted in inequality of wealth, even after several generations. d. The patterns of wealth distribution in the U.S. is not influenced by race.
_____ examines urban populations in terms of economic status, family status, and ethnic classification
a. Sector model b. Social area analysis c. The multiple nuclei model d. The concentric zone model
After taking a random start between 1 and 20 and then taking every 20th element from the sampling frame, Smith learned that 40% of the sample believed the company's president was doing a good job. The calculated standard error was 3 percent. Assuming a normal distribution, this means that
a. between 37% and 43% of the employees believe the president is doing a good job. b. you are 95% certain that between 37% and 43% of the employees believe the president is doing a good job. c. you are 68% certain that between 37% and 43% of the employees believe the president is doing a good job. d. you are 99% certain that between 37% and 43% of the employees believe the president is doing a good job. e. between one and twenty percent of the sample believes the president is doing a good job.