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4) An expert on worker performance is interested in the effect of room temperature on the performance of tasks requiring manual dexterity. She chooses temperatures of 70°F and 90°F as treatments. The response variable is the number of correct insertions, during a 30-minute period, in a peg-and-hole apparatus that requires the use of both hands simultaneously. Each subject is trained on the apparatus and then asked to make as many insertions as possible in 30 minutes of continuous effort. Describe a completely randomized design to compare dexterity at 70°F and 90°F using 20 volunteer subjects. Solution? To assign treatment randomly, you could write A and B on 20 different note cards (10 with A and 10 with B), put the cards in a hat, draw at random, and give one card to each volunteer. The number of correct insertions will be recorded for each subject and the two groups will be compared.

4) An expert on worker performance is interested in the effect of room temperature on the performance of tasks requiring manual dexterity. She chooses temperatures of 70°F and 90°F as treatments. The response variable is the number of correct insertions, during a 30-minute period, in a peg-and-hole apparatus that requires the use of both hands simultaneously. Each subject is trained on the apparatus and then asked to make as many insertions as possible in 30 minutes of continuous effort. Describe a completely randomized design to compare dexterity at 70°F and 90°F using 20 volunteer subjects. Solution? To assign treatment randomly, you could write A and B on 20 different note cards (10 with A and 10 with B), put the cards in a hat, draw at random, and give one card to each volunteer. The number of correct insertions will be recorded for each subject and the two groups will be compared.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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4) An expert on worker performance is interested in the effect of room temperature on the performance of tasks requiring manual dexterity. She chooses temperatures of 70°F and 90°F as treatments. The response variable is the number of correct insertions, during a 30-minute period, in a peg-and-hole apparatus that requires the use of both hands simultaneously. Each subject is trained on the apparatus and then asked to make as many insertions as possible in 30 minutes of continuous effort. Describe a completely randomized design to compare dexterity at 70°F and 90°F using 20 volunteer subjects. Solution? To assign treatment randomly, you could write A and B on 20 different note cards (10 with A and 10 with B), put the cards in a hat, draw at random, and give one card to each volunteer. The number of correct insertions will be recorded for each subject and the two groups will be compared.
Transcribed Image Text:4) An expert on worker performance is interested in the effect of room temperature on the performance of tasks requiring manual dexterity. She chooses temperatures of 70°F and 90°F as treatments. The response variable is the number of correct insertions, during a 30-minute period, in a peg-and-hole apparatus that requires the use of both hands simultaneously. Each subject is trained on the apparatus and then asked to make as many insertions as possible in 30 minutes of continuous effort. Describe a completely randomized design to compare dexterity at 70°F and 90°F using 20 volunteer subjects. Solution? To assign treatment randomly, you could write A and B on 20 different note cards (10 with A and 10 with B), put the cards in a hat, draw at random, and give one card to each volunteer. The number of correct insertions will be recorded for each subject and the two groups will be compared.
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