Find the value of the test statistic in this test. (Round your answer to two decimal places.)

Lipids provide much of the dietary energy in the bodies of infants and young children. There is a growing interest in the quality of the dietary lipid supply during infancy as a major determinant of growth, visual and neural development, and long-term health. An article reported the following data on total polyunsaturated fats (%) for infants who were randomized to four different feeding regimens: breast milk, corn-oiI-based formula, soy-oiI-based formula, or soy-and-marine-oiI-based formula. (Use i = 1, 2, 3, and 4 respectively.) Sample Sample Sample Sample Regimen Size Mean SD Breast milk 15 42.6 1.4 CO 13 43.2 1.2 $0 8 42.5 1.5 SMO 17 42.1 1.5