Which of the following t-stats did she most likely compute?

MATLAB: An Introduction with Applications
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A researcher conducts a study to test the hypothesis that meditation reduces anxiety. She recruits participants from a population with mean anxiety scores of µ = 70. After practicing meditation, the participants have a mean anxiety score of M = 60. She conducts a one sample t-test, with alpha = 0.01, one-tailed, and determines that there was a significant increase in anxiety scores. Which of the following t-stats did she most likely compute?
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