Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water. The raw data provided in table below. Does the data suggest that the true average concentration in the bottom water exceeds that of surface water? Use ?=0.01.
Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water. The raw data provided in table below. Does the data suggest that the true average concentration in the bottom water exceeds that of surface water? Use ?=0.01.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Trace metals in drinking water affect the flavor and an unusually high concentration can pose a health hazard. Ten pairs of data were taken measuring zinc concentration in bottom water and surface water. The raw data provided in table below. Does the data suggest that the true average concentration in the bottom water exceeds that of surface water? Use ?=0.01.

Transcribed Image Text:Location
1 2 3
Zinc (bottomZ)
concentration in .430 .266 567 .531 .707 .716 .651 .589 469 .723
bottom water
Variable
bottomz
surfacez 10
4 5 6 7 8 9 10
Zinc (surfaceZ)
concentration in .415 .238 .390 .410 .605 .609 .632 523 411 612
surface water
diff
diff2
Hint, please feel free to use the summary statistics I computed for you
N
Sum
10 5.6490
4.8450
10 0.8040
10
0.0892
Mean
0.5649
0.4845
0.0804
8.923E-03
Minimum
0.2660
0.2380
0.0150
2.250E-04
Maximum
0.7230
0.6320
0.1770
0.0313
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