Question: A developmental psychologist would like to determine whether infants display any color preferences. A stimulus consisting of four color patches (red, green, blue, and yellow) is projected onto the ceiling above a crib. Infants are placed in the crib, one at a time, and the psychologist records how much time an infant spends looking at each of the four colors. The color that receives the most attention during a 100 -second test period is identified as the preferred color for that infant. The preferred colors for a sample of 60 infants are shown in the following table:

Do the data indicate any significant preferences among the four colors? Test at the .05 level of significance.

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