A Red,round,true-Breeding Tomato Is Bred with a Yellow,oval,true-Breeding Tomato,and the F₁s

Essay

A red,round,true-breeding tomato is bred with a yellow,oval,true-breeding tomato,and the F₁s are testcrossed to a homozygous-recessive tester.This results in the offspring below.Calculate the chi-squared value to test the likelihood of linkage.
$$\begin{array} { l r } \text { yellow oval } & 11 \\\text { red round } & 14 \\\text { yellow round } & 7 \\\text { red oval } & 8\end{array}$$