Mathematics, 08.12.2019 06:31 avavackity
Aresearcher wants to determine if people who watch 2 or more hours of television a day are happier than those
who don't watch television. the researcher randomly picks 20 people. half were asked to watch television for at
least 2 hours a day for 2 weeks and the other half were asked not to watch television for 2 weeks.
what type of research is this?
an observational study
a census
a survey
an experiment
Answers: 1
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