Ten Functionally Illiterate Adults Were Given an Experimental One-Week Crash

question 55

Essay

Ten functionally illiterate adults were given an experimental one-week crash course in reading. Each of the 10 was given a reading test prior to the course and another test after the course. The results are shown below. $$\begin{array} { | l | c | c | c | c | c | c | c | c | c | c | } \hline \text { Adult } & 1 & 2 & 3 & 4 & 5 & 6 & 7 & 8 & 9 & 10 \\\hline \text { Score after course } & 48 & 42 & 43 & 34 & 50 & 30 & 43 & 38 & 41 & 3 \\\hline \text { Score before course } & 31 & 34 & 18 & 30 & 44 & 28 & 34 & 33 & 27 & 32 \\\hline\end{array}$$ a. Estimate the mean improvement with 95% confidence.
b. Briefly describe what the interval estimate in part a. tells you.

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Definitions:

Investments

Financial assets or items acquired with the intention of generating income or profit.

Significant Influence

The power to participate in the financial and operating policy decisions of another entity without having full control or joint control.

Fair Value Option

An accounting option allowing financial assets and liabilities to be recorded at their fair value, with changes in fair value recognized in the income statement.

Balance Sheet

A financial statement that displays a company's financial position at a specific point in time, detailing assets, liabilities, and shareholders' equity.