The article "Production of Gaseous Nitrogen in Human Steady-State Conditions" (J. of Applied Physiology, 1972: 155-159) reports the following observations on the amount of nitrogen expired (in liters) under four dietary regimens: (1) fasting, (2) 23% protein, (3) 32% protein, and (4) 67% protein. Use the Kruskal-Wallis test at level .05 to test equality of the corresponding μi's.

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1. 4.079 4.859 3.5405.047 3.298 2.4.368 5.668 3.752 5.848 3.802 3. 4.169 5.709 4.416 5.666 4.123 4 4.928 5.608 4.940 5.29 4.674 . 4.679 2.870 4.648 3.847 2. 4.844 3.578 5.393 4.374 3. 5.059 4.403 4.496 4.688 4. 5.038 4.905 5.208 4.806