A Test of Abstract Reasoning Is Given to a Random $\overline { \mathrm { d } }$

question 1

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 $\overline { \mathrm { d } }$ (before - after) = 3.7 and sd = 4.945 $$\text { Before } \begin{array} { l l l l l l l l l } 74 & 83 & 75 & 88 & 84 & 63&93 & 84 & 91 & 77\end{array}$$ After 73 77 70 77 74 67 95 83 84 75

• 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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Definitions:

P-Methylanisole

An organic compound where a methyl group is attached to the para position of anisole, a methoxybenzene.

Synthetic Steps

The individual chemical reactions or procedures used sequentially in the synthesis of complex organic compounds.

P-Cresol

A type of phenol with the chemical structure C7H8O, characterized by a methyl group attached to the benzene ring of phenol.

Synthetic Steps

The individual reactions or operations required to construct a complex molecule from simpler starting materials in a laboratory setting.