Describe a situation in which you would test a directional hypothesis. be sure to state the independent variables (e. g., drug or placebo) and the dependent variables (e. g., weight loss) clearly and explain why the hypothesis is directional. then, revise the same situation to make it nondirectional. explain which according to you is more appropriate and why. evaluate the practice of altering the alpha level so that a two-tailed test will have a 5% rejection region on both sides of the curve for a total of 10% instead of having a 2.5% rejection region on both sides in order to maintain a 5% alpha

Read the list of selections from the article. trump still seeks a border wall and said he might shut down the government again over it. a strong majority of americans blamed him for the standoff. and they rejected his arguments for a border wall, recent polls show. it is not clear how trump would fund the wall by declaring a national emergency. minutes later, senators voted 52-44 for a democratic plan to open agencies through february 8 with no wall money. that was eight votes short. yet it got more support than trump's republican plan, even though republicans control the senate 53-47. which two selections, taken together, provide the best evidence to support the idea that most people do not support funding a border wall? a 1 and 3 b 1 and 4 c 2 and 3 d 2 and 4

For each of the six basic tactics, select the set of action steps (a to f) that describe the tactic. answers

Hurricane katrina is arguably an effect : a. an increase of living creatures and crowded habitats b. environmentalism c. global climate change d. unforseen factors