Results of a study of the repair records of three models of cars over the first three years of the cars’ lives on the basis of a sample are shown below. Percentages Requiring Car Model Number Surveyed...

Results of a study of the repair records of three models of cars over the first three years of the cars’ lives on the basis of a sample are shown below.

Test the hypothesis that all models perform equally well, so probabilities are independent of the model. The level of significance to be used will be 5%.