Paired Samples Test Paired Differences 95% Confidence Interval of the Difference Std. Error Mean Mean Std. Deviation Lower Upper df Sig. (2-tailed) Pair 1 TBI_2Mo - TBI_1 2Mo 2.30000 1.69706 .60000...

Traumatic Brain Injuries have been shown to affect brain volume. A psychologist measures the brain volume of N=8 TBI patients at 2 months and 12 months after their injuries. Evaluate the results of her data using α = .05_2tail.

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a. Show how the 95% confidence interval was calculated.

b. State the conclusion in APA format.

Extracted text: Paired Samples Test Paired Differences 95% Confidence Interval of the Difference Std. Error Mean Mean Std. Deviation Lower Upper df Sig. (2-tailed) Pair 1 TBI_2Mo - TBI_1 2Mo 2.30000 1.69706 .60000 .88123 3.71877 3.833 7 .006