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:

Accounts Receivable-Redding

Accounts receivable specifically related to the Redding location or branch, indicating money owed by customers for goods or services delivered.

$8,300 Balance

A specific amount, often referring to the closing or remaining value in a particular account at a given moment.

Promissory Note

A monetary tool that involves a formal pledge from one entity to another to pay a specific amount of cash, either upon request or at an agreed-upon date in the future.

Maturity

The date on which a financial obligation, such as a loan or bond, is due to be repaid in full.