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Exercise 2. Water samples were taken at four different locations in a river to determine whether the quantity of dissolved oxygen, a measure of water pollution, varied from one location to another. Locations 1 and 2 were selected above an industrial plant, one near the shore and the other in midstream; location 3 was adjacent to the industrial water discharge for the plant; and location 4 was slightly down river in midstream. Live water specimens were randomly selected at each location. The data are shown in the accompanying table (the greater the pollution, the lower will be the dissolved oxygen readings). Do the data provide sufficient evidence to indicate a difference in mean dissolved oxygen content for the four locations? Location 1 2 3 4 5.9 6.3 4.8 6.0 6.1 6.6 4.3 6.2 6.3 6.4 5.0 6.1 6.1 6.4 4.7 5.8 6.0 6.5 5.1 5.9

Exercise 2. Water samples were taken at four different locations in a river to determine whether the quantity of dissolved oxygen, a measure of water pollution, varied from one location to another. Locations 1 and 2 were selected above an industrial plant, one near the shore and the other in midstream; location 3 was adjacent to the industrial water discharge for the plant; and location 4 was slightly down river in midstream. Live water specimens were randomly selected at each location. The data are shown in the accompanying table (the greater the pollution, the lower will be the dissolved oxygen readings). Do the data provide sufficient evidence to indicate a difference in mean dissolved oxygen content for the four locations? Location 1 2 3 4 5.9 6.3 4.8 6.0 6.1 6.6 4.3 6.2 6.3 6.4 5.0 6.1 6.1 6.4 4.7 5.8 6.0 6.5 5.1 5.9

MATLAB: An Introduction with Applications
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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Exercise 2. determine whether the quantity of dissolved oxygen, a measure of water pollution, varied from one location to another. Locations 1 and 2 were selected above an industrial plant, one near the shore and the other in midstream; location 3 was adjacent to the industrial water discharge for the plant; and location 4 was slightly down river in midstream. Water samples were taken at four different locations in a river to Live water specimens were randomly selected at each location. The data are shown in the accompanying table (the greater the pollution, the lower will be the dissolved oxygen readings). Do the data provide sufficient evidence to indicate a difference in mean dissolved oxygen content for the four locations? Location 1 3 目 5.9 6.3 4.8 6.0 6.1 6.6 4.3 6.2 6.3 6.4 5.0 6.1 6.1 6.4 4.7 5.8 6.0 6.5 5.1 5.9
Transcribed Image Text:Exercise 2. determine whether the quantity of dissolved oxygen, a measure of water pollution, varied from one location to another. Locations 1 and 2 were selected above an industrial plant, one near the shore and the other in midstream; location 3 was adjacent to the industrial water discharge for the plant; and location 4 was slightly down river in midstream. Water samples were taken at four different locations in a river to Live water specimens were randomly selected at each location. The data are shown in the accompanying table (the greater the pollution, the lower will be the dissolved oxygen readings). Do the data provide sufficient evidence to indicate a difference in mean dissolved oxygen content for the four locations? Location 1 3 目 5.9 6.3 4.8 6.0 6.1 6.6 4.3 6.2 6.3 6.4 5.0 6.1 6.1 6.4 4.7 5.8 6.0 6.5 5.1 5.9
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