Exercise 6-5 describes data from an article in Human Factors on visual accommodation from an experiment involving a high-resolution CRT screen.

(a) Construct a dot diagram of this data.

(b) Data from a second experiment using a low-resolution screen were also reported in the article. They are 8.85, 35.80, 26.53, 64.63, 9.00, 15.38, 8.14, and 8.24. Prepare a dot diagram for this second sample and compare it to the one for the first sample. What can you conclude about CRT resolution in this situation?