An experiment to determine the inheritance of flower color in snapdragons crossed two plants with pink flowers. The following progeny were recovered from the cross 84 plants had red flowers, 172 had pink flowers, and 78 had white flowers. Use a chi-square test to determine whether those numbers fit a Mendelian pattern of inheritance. Include:

1. The Chi-square value
2. The number of degrees of freedom
3. The p-value
4. Interpret what the p-value means