Find the pooled variance for the two samples. Compute the estimated standard error for the sample mean differences (i.e. for the two groups). If the sample mean difference (i.e. M1 – M2) is 8 points, is this enough to indicate a significant difference for a two-tailed test at a = .05 level? If the sample mean difference (i.e. M1 – M2) is 12 points, is this enough to indicate a significant difference for a two-tailed test at a = .05 level? а. b. с. d.
Find the pooled variance for the two samples. Compute the estimated standard error for the sample mean differences (i.e. for the two groups). If the sample mean difference (i.e. M1 – M2) is 8 points, is this enough to indicate a significant difference for a two-tailed test at a = .05 level? If the sample mean difference (i.e. M1 – M2) is 12 points, is this enough to indicate a significant difference for a two-tailed test at a = .05 level? а. b. с. d.
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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I need answers for questions c and d please
show a full diagram of the
research design. Also show all steps and calculations made for each test
Transcribed Image Text:12.2
One sample has n = 15 with SS = 1570, and a second sample has n = 15 with SS =
1650.
Find the pooled variance for the two samples.
Compute the estimated standard error for the sample mean differences
(i.e. for the two groups).
If the sample mean difference (i.e. M1 – M2) is 8 points, is this enough to
indicate a significant difference for a two-tailed test at a = .05 level?
If the sample mean difference (i.e. M1 – M2) is 12 points, is this enough
to indicate a significant difference for a two-tailed test at a = .05 level?
а.
b.
с.
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