A magazine reported on a study of the reliability of a commercial kit to test for arsenic
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Question:
A magazine reported on a study of the reliability of a commercial kit to test for arsenic in groundwater. The field kit was used to test a sample of 2020 groundwater wells in a country. In addition to the arsenic level (micrograms per liter), the latitude (degrees), longitude (degrees), and depth (feet) of each well was measured.
- State hypothesis
- state conditions
- math of the getting the test statistic (mechanic)
- p-value meanng
- conclusion
well ID | latitude | longitude | depth | arsenic |
1 | 23.7858 | 90.6409 | 60 | 146 |
2 | 23.7646 | 90.6151 | 90 | 142 |
3 | 23.7898 | 90.6357 | 95 | 183 |
4 | 23.7894 | 90.6344 | 40 | 93 |
5 | 23.7653 | 90.6203 | 60 | 223 |
6 | 23.7937 | 90.6459 | 100 | 206 |
7 | 23.7927 | 90.6364 | 95 | 22 |
8 | 23.7722 | 90.6182 | 30 | 207 |
9 | 23.7853 | 90.6398 | 110 | 209 |
10 | 23.7891 | 90.6224 | 90 | 23 |
11 | 23.7901 | 90.6358 | 40 | 164 |
12 | 23.7699 | 90.6164 | 120 | 285 |
13 | 23.7807 | 90.6392 | 40 | 95 |
14 | 23.7766 | 90.6353 | 60 | 213 |
15 | 23.7787 | 90.6234 | 90 | 277 |
16 | 23.7791 | 90.6163 | 50 | 282 |
17 | 23.7659 | 90.6403 | 30 | 172 |
18 | 23.7773 | 90.6198 | 150 | 166 |
19 | 23.7941 | 90.6197 | 30 | 68 |
20 | 23.7804 | 90.6295 | 110 | 271 |
Related Book For
Statistics For Engineering And The Sciences
ISBN: 9781498728850
6th Edition
Authors: William M. Mendenhall, Terry L. Sincich
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