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Social Studies, 20.09.2019 06:00 paigejohnson6161

Ellen wants to see if the level of lighting in a room will affect the performance of individuals on an iq test. one group in her study is placed in a room with very bright lights and a second group is placed in a room with more normal lighting. she finds that the individuals in the bright light group have better scores on the test than do the individuals in the normal light group. the difference between the two groups' scores is statistically significant, which means that the

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