Imagine you have calculated a cutoff value and chi-square value from a given problem. If your chi-square value (16.74) is more extreme than your cutoff value (12.32), what can you conclude? O Fail to reject the null hypothesis. 0 You are unable to make a conclusion. 0 Reject the null hypothesis. 0 Accept the null hypothesis. A chisquare test is used to determine if the time of day that people exercise (morning or night) differs significantly across age groups (older or younger adults). Based on their results, researchers determined that they failed to reject the null hypothesis. What does that mean? 0 The proportion of people who exercise in the morning versus at night is different for older and younger adults. 0 The proportion of people who exercise in the morning versus at night is not different for older and younger adults. 0 Younger adults exercise more in the morning and older adults exercise more at night. 0 Older adults exercise less frequently than younger adults, no matter what time of day