To investigate if standing up while studying affects performance in an algebra class, a teacher assigns half of the 30 students in his class to stand up while studying and assigns the other half to not stand up while studying. to determine who receives which treatment, the teacher identifies the two students who did best on the last exam and randomly assigns one to stand and one to not stand. the teacher does the same for the next two highest-scoring students and continues in this manner until each student is assigned a treatment. which of the following best describes this plan?
a. this is a completely randomized experiment.
a. this is a cluster sample.
c. this is a stratified random sample.
d. this is an experiment with blocking.
e. this is an observational study

Awife was having an affair with her neighbor. the wife and her husband had a prenuptial agreement that prevented the wife from receiving any of the husband’s sizable fortune in the event of a divorce. the wife and her neighbor formed a plan to murder the husband and run away together with the wife’s inheritance. the neighbor shot the husband one evening, killing him instantly, then drove to a town 100 miles away and checked into a motel. later that night, the police showed up at the motel with a valid warrant for the neighbor’s arrest. after the neighbor was arrested and placed in a police car, the police asked the motel clerk for permission to search the room, and the clerk granted the request. the police found the gun hidden in the tank of the toilet. the wife and the neighbor were each charged with first-degree murder and tried separately. at her trial, the wife sought to suppress any evidence of the gun, arguing that it was seized illegally. what is the prosecution’s strongest response to this argument? athe motel clerk gave the police permission to search the room. bthe wife was not staying in the motel room where the gun was found. cthe gun was found in a search incident to a lawful arrest. dthe neighbor did not have a reason

2. when a government has total control over its citizens, including the media, it is a of government question 2 options: constitutional monarchy parliamentary democracy autocracy presidential democracy

What effect did the enclosure acts have on people’s working lives? a. changes brought about by the acts prevented large farmers from taking lands from smaller farmers. b. small farmers could no longer work on common lands and had to move to cities for work. c. peasants started working on enclosed lands and soon became wealthy because of higher wages. d. landowners forced peasants to build roads and bridges as part of the new enclosure laws.