In a television advertisement, a company called "waist away" claimed the workout program on their set of dvds would people lose weight more than any other dvd workout program. to test this claim, an independent company, called "slim down," selected one other dvd program. they then randomly assigned half the volunteers to the waist away program and the other half to the slim down program. each participant was weighed before they started the program and then regularly participated in their assigned program for one month. after one month, each participant was weighed again. the percent of weight lost was recorded for each person, where negative values indicated a weight gain. what type of study was performed?

1. according to the article, the chinese government has tried to control its people in all of the following ways except: question 1 options: create and spread propaganda in the media censorship of the media allowing people to create their own social media deleting people's social media posts without their permission 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 according to the article, "social credit" is question 3 options: an experiment to people talk on-line a farming experiment that hurt people under mao ze dong using someone else's data from the internet, to give or take away things such as the right to buy an airline ticket a credit you get in china for having friends in real life, and not just on social media china wants to take control over social media in which other region? question 4 options: taiwan chile japan hong kong