Mathematics, 18.04.2020 00:25 ariana0517
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 15:00
Solve the word problem. the table shows the low outside temperatures for monday, tuesday, and wednesday. by how many degrees did the low temperature increase from monday to tuesday? this function table shows the outside temperature for a given a. 21.1⁰ b. 8.6⁰ c. 4.9⁰ d. 3.9⁰(the picture is the graph the the question is talking about.)
Answers: 1
Mathematics, 21.06.2019 15:00
The radius of the base of a cylinder is 10 centimeters, and its height is 20 centimeters. a cone is used to fill the cylinder with water. the radius of the cone's base is 5 centimeters, and its height is 10 centimeters.
Answers: 1
Mathematics, 21.06.2019 21:00
Aquadrilateral has exactly one pair of parallel sides. which name best describes the figure?
Answers: 3
Mathematics, 22.06.2019 00:30
50 points and will mark brainlest if you were constructing a triangular frame, and you had wood in the length of 4inches, 4 inches, and 7 inches, would it make a triangle? would you be able to create a frame from these pieces of wood? yes or no? = explain your mathematical thinking:
Answers: 1
Recently, a group of adults who swim regularly for exercise were evaluated for depression. It turned...
Arts, 04.08.2019 12:30
Spanish, 04.08.2019 12:30
History, 04.08.2019 12:30
Spanish, 04.08.2019 12:30
Biology, 04.08.2019 12:30
English, 04.08.2019 12:30
History, 04.08.2019 12:30
English, 04.08.2019 12:30
Arts, 04.08.2019 12:30
Physics, 04.08.2019 12:30