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Explanation & Answer
W/O additive | W/ Additive | d |
11.7 | 14.8 | 3.1 |
11.3 | 12.2 | 0.9 |
16.6 | 17.4 | 0.8 |
13.5 | 15.4 | 1.9 |
14.2 | 14.5 | 0.3 |
16.5 | 17.9 | 1.4 |
17.7 | 20 | 2.3 |
26.9 | 27.7 | 0.8 |
13.4 | 15 | 1.6 |
20.4 | 22.1 | 1.7 |
Mean = | 1.48 | |
Stdev = | 0.83 |
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