An Instructor Gives a Test Before and After a Lesson

question 14

Essay

An instructor gives a test before and after a lesson and results from randomly selected students are given below. At the 0.05 level of significance, test the claim that the lesson has no effect on the grade. Use the sign test. $$\begin{array} { l l l l l l l l l l l l l l l l } \text { Before } & 54 & 61 & 56 & 41 & 38 & 57 & 42 & 71 & 88 & 42 & 36 & 23 & 22 & 46 & 51 \\\hline \text { After } & 82 & 87 & 84 & 76 & 79 & 87 & 42 & 97 & 99 & 74 & 85 & 96 & 69 & 84 & 79\end{array}$$

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Definitions:

Profane

That which is of the everyday, secular world and is specifically not religious.

Sacred

That which is set apart from ordinary activity, seen as holy, and protected by special rites and rituals.

Hooking Up

A term commonly used to describe engaging in sexual or romantic activities without necessarily demanding or expecting a more formal relationship.

Monotheistic

Describes a belief system or religion that recognizes a single, supreme deity as the only god worthy of worship.