One Hundred Pairs of Glasses Were Purchase from On-Line Stores $\chi$

One hundred pairs of glasses were purchase from on-line stores. The lenses were subjected to an optical test and an impact test.
Suppose the results are


(a) State the null and alternative hypotheses.
(b) Make a table that includes the observed and expected cell frequencies as well as the contributions of each cell to the $\chi$ ² statistic.
(c) Conduct a $\chi$ ² test with $\alpha$ = .05. State your conclusion.