A therapist believes that the music a child listens to may have an impact on the number of words on a list he or she can memorize. In order to test this, the therapist selects a random sample of children for an experiment. She has the children look over a list of 100 words for 5 minutes while listening to classic rock music. After the 5 minutes, she tests the children to see how many words they can remember in the order of the list. She then does the same experiment, this time with a different list of words, while the children listen to classical music. Suppose that data were collected for a random sample of 19 children, where each difference is calculated by subtracting the number of words remembered listening to classical music from the number of words remembered listening to classic rock music. Assume that the numbers of words are normally distributed. Identify the critical value(s) of the t -test statistic, where = 0.05 . Use a comma and a space to separate answers as needed. Probability 0.10 0.05 0.025 0.01 0.005 Degrees of Freedom 10 1.372 1.812 2.228 2.764 3.169 11 1.363 1.796 2.201 2.718 3.106