The quantity of dissolved oxygen is a measure of water pollution in lakes, rivers, and streams, Water samples wgie Laken at four ditterent locations in a river in an effort lo determine if water pollution varied from location to location. Location I was 500 meters above an industrial plant water discherye po nt and neat the shore, I ocation Il was 200 meters above the discharge point and in midstream. Location III was 50 meters downstream from the discharge polnt and near the shore. Location V was 200 mcters dewnstream from the discharge point and in midetream. The followino table shows the results. Lower dissolved oxygen readings mean more pollution. Because of the difficuity in geling midstreani sarmples, ecology students collecting the data had fower of these samples. Use d 5% level of significance. Do we reject or not reject the claim that the quantity of dissolved oxygen does nútvary trom ong kocation fo another? I ocation I Location II I ocation L Location Tv 7.7 6.1 7.8 4.3 6.6 5.3 7.9 7.6 4.5 G.G 6.6 8.1 S.2 4.G 6.8 (a) What is the level of sionficancc? Slate the null and altemate hypotheses. O Họ: H1 H2 Ps Hai Hy: Exactly two mears aru uuua O lo: H1 - H2 - H3 = H4; H2: Fxnctly three meens erc cqual O H: M1 - 2 - 3- H4: H: All tour meats are different. O Ho 1 - H- -: H: Nat all the wans are equal.
The quantity of dissolved oxygen is a measure of water pollution in lakes, rivers, and streams, Water samples wgie Laken at four ditterent locations in a river in an effort lo determine if water pollution varied from location to location. Location I was 500 meters above an industrial plant water discherye po nt and neat the shore, I ocation Il was 200 meters above the discharge point and in midstream. Location III was 50 meters downstream from the discharge polnt and near the shore. Location V was 200 mcters dewnstream from the discharge point and in midetream. The followino table shows the results. Lower dissolved oxygen readings mean more pollution. Because of the difficuity in geling midstreani sarmples, ecology students collecting the data had fower of these samples. Use d 5% level of significance. Do we reject or not reject the claim that the quantity of dissolved oxygen does nútvary trom ong kocation fo another? I ocation I Location II I ocation L Location Tv 7.7 6.1 7.8 4.3 6.6 5.3 7.9 7.6 4.5 G.G 6.6 8.1 S.2 4.G 6.8 (a) What is the level of sionficancc? Slate the null and altemate hypotheses. O Họ: H1 H2 Ps Hai Hy: Exactly two mears aru uuua O lo: H1 - H2 - H3 = H4; H2: Fxnctly three meens erc cqual O H: M1 - 2 - 3- H4: H: All tour meats are different. O Ho 1 - H- -: H: Nat all the wans are equal.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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