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Two separate samples, each with n = receive different treatments. After treatment, the first sample has SS = 1740 and the second has SS = 1620. 15 individuals,

Two separate samples, each with n = receive different treatments. After treatment, the first sample has SS = 1740 and the second has SS = 1620. 15 individuals,

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
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5. Two separate samples, each with n = 15 individuals, receive different treatments. After treatment, the first sample has SS = 1740 and the second has SS = 1620. a. Find the pooled variance for the two samples. b. Compute the estimated standard error for the sample mean difference. c. If the sample mean difference is 8 points, is this enough to reject the null hypothesis and conclude that there is a significant difference for a two-tailed test at the .05 level?
Transcribed Image Text:5. Two separate samples, each with n = 15 individuals, receive different treatments. After treatment, the first sample has SS = 1740 and the second has SS = 1620. a. Find the pooled variance for the two samples. b. Compute the estimated standard error for the sample mean difference. c. If the sample mean difference is 8 points, is this enough to reject the null hypothesis and conclude that there is a significant difference for a two-tailed test at the .05 level?
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