Mathematics, 23.03.2020 17:29 Nerdylearner8639
Researchers studying the number of electric fish species living in various parts of the Amazon basin were interested in whether the presence of tributaries affected the local number of elecctric fish species in the main rivers. They counted the number of electric fish species above and below the entrance point of a major tributary at 12 different river locations. Here's what they found:Tributary Upstream number of species Downstream number of speciesIca 14 19Jutai 11 18Japura 8 8Coari 5 7Purus 10 16Manacapuru 5 6Negro 23 24Madeira 29 30Trombetas 19 16Tapajos 16 20Xingu 25 21Tocantins 10 12a) What is the mean difference in the number of species between areas upstream and downstream of the tributary? What is the 95% confidence interval of this mean difference?b) Test the hypothesis that the tributaries have no effect on the number of species of electric fish.
c) State the assumptions that you had to make to complete parts (a) and (b).
Answers: 1
Mathematics, 21.06.2019 20:00
Leslie started last week with $1200 in her checking account. during the week, she wrote the checks below.
Answers: 1
Mathematics, 21.06.2019 20:00
The total number of dental clinics total for the last 12 months was recorded
Answers: 3
Mathematics, 22.06.2019 01:00
(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.
Answers: 1
Researchers studying the number of electric fish species living in various parts of the Amazon basin...
Biology, 18.11.2020 18:50
Chemistry, 18.11.2020 18:50
Mathematics, 18.11.2020 18:50
Mathematics, 18.11.2020 18:50
Physics, 18.11.2020 18:50
Biology, 18.11.2020 18:50
Social Studies, 18.11.2020 18:50