Mathematics, 20.03.2020 11:31, Valduarte07
Recently, a group of adults who swim regularly for exercise were evaluated for depression. It turned out that these swimmers were less likely to be depressed than the general population. The researchers said the difference was statistically significant. a) What does "statistically significant" mean in this context? b) Is this an experiment or an observational study? Explain. c) News reports claimed this study proved that swimming can prevent depression. Explain why this conclusion is not justified by the study. Include an example of a possible lurking variable. d) But perhaps it is true. We wonder if exercise can ward off depression, and whether anaerobic exercise (like weight training) is as effective as aerobic exercise (like swimming). We find 120 volunteers not currently engaged in a regular program of exercise. Design an appropriate experiment.
Answers: 1
Mathematics, 21.06.2019 18:40, stephen4438
Which of the following represents the range of the graph of f(x) below
Answers: 1
Mathematics, 22.06.2019 01:00, cthompson1107
First work with stencil one. use a combination of reflections, rotations, and translations to see whether stencil one will overlap with the original pattern. list the sequence of rigid transformations you used in your attempt, noting the type of transformation, the direction, the coordinates, and the displacement in
Answers: 3
Recently, a group of adults who swim regularly for exercise were evaluated for depression. It turned...
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