A nurse selects a random sample of 194 patients from her large hospital. For each patient, he records the height, in inches, and whether they have suffered a bone injury. He would like to know if there is convincing evidence that a person’s height is associated with whether they have suffered a bone injury. Let = 0.05. The observed and expected counts are displayed in the tables. Observed counts: Expected counts: Which of the following contributed the most to the value of the χ2 statistic? less than 64 and suffered a bone injury between 64 and 70 and suffered a bone injury greater than 70 and suffered a bone injury greater than 70 and has not suffered a bone injury