5. “On the whole,” Ms. Winson remarked, “engineering students are lazier now than they used to be. I know because fewer and fewer of my students regularly do the work they are assigned.”
The conclusion drawn above depends on which of the following assumptions?
A) Engineering students are working less because, in a booming market, they are spending more and more time investigating different job opportunities.
B) Whether or not students do the work they are assigned is a good indication of how lazy they are.
C) Engineering students should work harder than students in less demanding fields.
D) Ms. Winson's students are doing less work because Ms. Winson is not as effective a teacher as she once was.
E) Laziness is something most people do not outgrow.
6. The average life expectancy for the United States population as a whole is 73.9 years, but children born in Hawaii will live an average of 77 years, and those born in Louisiana, 71.7 years. If a newlywed couple from Louisiana were to begin their family in Hawaii, therefore, their children would be expected to live longer than would be the case if the family remained in Louisiana.
Which of the following statement, if true, would most significantly strengthen the conclusion drawn in the passage?
A) As population density increases in Hawaii, life Expectancy figures for that state are likely to be revised downward.
B) Environmental factors tending to favor longevity are abundant in Hawaii and less numerous in Louisiana.
C) Twenty-five percent of all Louisianaians who move to Hawaii live longer than 77 years.
D) Over the last decade, average life expectancy has risen at a higher rate for Louisianaians than for Hawaiians.
E) Studies show that average life expectancy for Hawaiians who move permanently to Louisiana is roughly equal to that of Hawaiians who remain in Hawaii.