The following response-time data (in msec) were obtained on Farmer Brown and his son Big John while operating a tractor using the right foot to control the clutch, brake, and accelerator. The foot is normally kept on the rest position. The location and sizes of the pedals are shown below as well as some sample response times (in msec) for activating a given control from the rest position.

a. What is the index of difficulty value for each pedal?

b. Plot the response times. What law can be used to explain the relationship between response times and the difficulty in activating a given control?

c. What is the simple reaction time for Farmer Brown?

d. What is the bandwidth for Big John?

e. Which farmer is the better tractor operator? Why?

Transcribed Image Text:

Clutch Brake Accelerator Rest position 2" Accelerator Brake Clutch Farmer Brown 300 432 510 Big John 270 428 480 Clutch Brake Accelerator Rest position 2" Accelerator Brake Clutch Farmer Brown 300 432 510 Big John 270 428 480

Answer rating: 100% (QA)

a The index of difficulty is defined in bits by ID log 2 2DW Accelerator Brake Clutch log 2 222 1 lo... View the full answer