Mathematics, 30.05.2020 23:03, aedmund1225
Suppose that you wish to test the effect of lowering the soil ph on the number of lady ferns in an area. The researchers hypothesize that lowering the ph-level of the soil will lead to more ferns. Several plots of forest are randomly chosen and the number of lady ferns counted, before and after the soil has been treated with lime (which lowers the soil ph).
Before Treatment 10 20 13 30
After Treatment 8 15 14 30
Using the sign test, what can be concluded from this experiment?
A. We do not reject the null hypothesis.
B. We reject the null hypothesis.
C. There is no evidence that treating the soil with lime increases the number of ferns.
D. Both (a) and (c)
Answers: 2
Mathematics, 21.06.2019 14:00, fahaddakhil3186
Question 1(multiple choice worth 1 points)(07.06 mc)a group of students must collect at least $150 to organize a science fair. they have already collected $30. which graph best represents all remaining amounts of money, in dollars, that thestudents should still collect to organize the science fair? -210 -180 -150 - 120 -90-60 -300306090 120 150 180 210-210 -180 -150 - 120 -90 -60 -30 0 30 60 90 120 150 180 210-210 -180-150 - 120 -90-60-300 30 60 90 120 150 180 210-210 -180 -150 - 120.90 -60 -30 0 30 60 90 120 150 180 210
Answers: 3
Mathematics, 21.06.2019 17:00, joelpimentel
Asailor is looking at a kite. if he is looking at the kite at an angle of elevation of 36and the distance from the boat to the point where the kite is directly overhead is 40 feet, how high is the kite?
Answers: 3
Mathematics, 21.06.2019 21:30, mrlepreqon8897
Apool measures 100 meters by 100 meters a toddler inside the pool and trows a ball 60 centimeters from one edge of the pool. how far is the ball from the opposite edge of the pool
Answers: 1
Suppose that you wish to test the effect of lowering the soil ph on the number of lady ferns in an a...
History, 05.05.2020 11:14
History, 05.05.2020 11:14
Mathematics, 05.05.2020 11:14
Chemistry, 05.05.2020 11:14
Mathematics, 05.05.2020 11:14