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

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Identify whether the solution is correct. Identify the error, if there is one.

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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