A Test of Abstract Reasoning Is Given to a Random

question 26

Multiple Choice

A test of abstract reasoning is given to a random sample of students before and after they completed a formal logic course.The results are given below.Construct a 95% confidence interval for the mean difference between the before and after scores if
(before-after) = 3.7 and
= 4.945

• A)(1.2,5.7)
• B)(0.2,7.2)
• C)(0.8,6.6)
• D)(1.0,6.4)
• E)(-4.4,11.8)

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