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Name: Researchers found the influence of background noise on class performan
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Description: Researchers found the influence of background noise on class performance for children. They found that calming music led to better performance on a math task compared to a no-music condition. A researcher selects one class of n = 18 student who liste

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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Researchers found the influence of background noise on class performance for children. They found that calming music led to better performance on a math task compared to a no-music condition. A researcher selects one class of n = 18 student who listen to calming music. A second class of n = 18 serves as a control group with no music. The average for student in the first class is M = 86.4 with SS = 1550 compared to an average of M = 78.8 with SS = 1204 for students in the second class. Use α = .05.

a. Is there a significant difference between the two music conditions?

b. Compute the 90% confidence interval.

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