Dominant Hand Professor Andy Neill wanted to determine if

Chapter 1, Problem 17E

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Dominant Hand Professor Andy Neill wanted to determine if the reaction time of people differs in their dominant hand versus their nondominant hand. To do this, he recruited 15 students. Each student was asked to hold a yardstick between the index finger and thumb. The student was asked to open the hand, release the yardstick, and then asked to catch the yardstick between the index finger and thumb. The distance that the yardstick fell served as a measure of reaction time. A coin flip was used to determine whether the student would use their dominant hand first or the nondominant hand. Results indicated that the reaction time in the dominant hand exceeded that of the nondominant hand.

(a) What type of experimental design is this?

(b) What is the response variable in this study?

(c) What is the treatment?

(d) Identify the experimental units.

(e) Why did Professor Neill use a coin flip to determine whether the student should begin with the dominant hand or the nondominant hand?

(f ) Draw a diagram similar to Figure 7, 8, or 10 to illustrate the design.

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