Mathematics, 28.11.2019 05:31, funnyadriany4
Anew york times article titled for runners, soft ground can be hard on the body considered two perspectives on whether runners should stick to hard surfaces or soft surfaces following an injury. one position supported running on soft surfaces to relieve joints that were in recovery from injury. the second position supported running on hard surfaces since soft surfaces can be uneven, which may make worse those injuries a soft surface was intended to . suppose we are given sufficient funds to run an experiment to study this topic. with no studies to support either position, which of the following hypotheses would be appropriate? a. the second position makes the more sense, so this should be a one-sided test. in this case, we should form the alternative hypothesis around the first position.
b. the first position is more sensible, so this should postpone defining the hypotheses until after we collect data to guide the rest.
c. because there is uncertainty, we should postpone defining the hypotheses until after we collect data to guide the test.
d. because we would be interested in any difference between running on hard and soft surfaces, we should use a two-sided hypothesis test
Answers: 3
Mathematics, 21.06.2019 15:30, nsuleban9524
Astore manager records the total visitors and sales, in dollars, for 10 days. the data is shown in the scatter plot. what conclusion can the store manager draw based on the data? question 3 options: an increase in sales causes a decrease in visitors. an increase in sales is correlated with a decrease in visitors. an increase in visitors is correlated with an increase in sales.
Answers: 1
Mathematics, 21.06.2019 20:00, andrwisawesome0
Aconstruction worker has rope 9 m long he needs to cut it in pieces that are each 3 /5 m long how many such pieces can he cut without having any rope leftover?
Answers: 3
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