Mathematics, 07.01.2020 22:31 brian2913
Aschool principal wants to observe if natural light has an effect in the classroom learning. the principal randomly chooses two groups of students of the same age and grade, and places both groups in rooms on opposite sides of the school, one facing east and one facing west, during a 10 am class. the test scores of both classes are compared at the end of the semester. how could this observation be changed into a valid experiment of the effects of natural light?
a. by introducing adjustable light fixtures in each classroom
b. by introducing adjustable blinds in each classroom
c. by tinting the windows in bith classrooms with the same film
d. by including classrooms facing north and south
Answers: 2
Mathematics, 21.06.2019 22:00
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Mathematics, 22.06.2019 00:00
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Mathematics, 22.06.2019 01:30
Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample
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Aschool principal wants to observe if natural light has an effect in the classroom learning. the pri...
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