Using the data in Table 13.2, ask whether peoples first guess is usually better than their second

Question:

Using the data in Table 13.2, ask whether people’s first guess is usually better than their second guess. (This parallels advice that you often receive about test taking to the effect that you should not go back and change a guessed answer unless you are sure that your new answer is correct. Vul and Pashler found a significant difference, but they had many more participants.)