do people change their political views during college? two hundred students were asked as freshman and then again as seniors if they supported gay marriage. the data is below. suppose that a social scientist wanted to determine if there was a difference between the population proportions of students at uf who supported gay marriage as a freshman then as a senior. find the test statistic.

Which units ate used to measure both velocity and speed? check all that apply

Which heredity condition causes a buildup of mucus in lungs and pancreas? a. cystic fibrosis b. heart disease c. huntington's disease d. sickle cell anemia

Embryonic stem cells are cells derived from an embryo. these cells can be used to create new tissues for patients suffering from certain illnesses and disorders. which statement best summarizes why the use of embryonic stem cells could be seen as unethical? a. some people consider embryos to possess rights equal to those of fully developed human beings. b. extracting stem cells from embryos is a very energy-intensive process, which consumes resources that could be used elsewhere. c. embryos are difficult to obtain, so the monetary cost of using them for research outweighs their benefit. d. the process of extracting stem cells from embryos generates biohazardous waste that cannot be safely disposed of.