Question 13
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, what is the sample standard deviation?
- A. 0.73324
- B. 0.64224
- C. 11.2384
- D. 1.77928
- E. 1.711