Question 11

It is known that the average time an adult can read a 1000-word passage is 4.5 minutes. A psychologist is interested in whether exercising eye muscles would make this process faster. 25 adults voluntarily participate in the research, and they do eye exercises for 5 minutes every day for 2 weeks. After the training session, they come to the researcher's lab and read a 1000-word passage while being timed. The dataset is provided in the Excel file.

Based on the information above, which of the following would be the critical t value at the .05 alpha level?

• A. +/- 1.711
• B. -1.711
• C. +1.711
• D. +2.064
• E. -2.064

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