A study was conducted by Joseph Jacobson and Diane Wille to determine the effect of early child care on infant-mother attachment patterns.5 In the study, 93 infants were classified as either "secure" or "anxious" using the Ainsworth strange situation paradigm. In addition, the infants were classified according to the average number of hours per week that they spent in child care. The data are presented in the table.

a. Do the data provide sufficient evidence to indicate that there is a difference in attachment pattern for the infants depending on the amount of time spent in child care? Test using a _ .05.
b. What is the approximate p-value for the test in part a?

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Low (0-3 hours) 4-19 hours) (20-54 hours Moderate High Secure 24 Anxious 11 35 10