Internet Classes
a Survey of 25 Students Was Conducted to Determine

question 35

Essay

Internet Classes
A survey of 25 students was conducted to determine how they rate the quality of Internet classes.Students were asked to rate the overall quality from 0 (no quality at all)to 100 (extremely good quality).The stem-and-leaf display of the data is shown below.
$$\begin{array} { c | l } \text { Stem } & \text { Leaves } \\\hline 3 & 15 \\4 & 01457889 \\5 & 0134677 \\6 & 24568 \\7 & 29 \\8 & \\9 & 5\end{array}$$
-{Internet Classes Narrative} What percentage of the students rated the overall quality of on-line classes as being between 50 and 75,inclusive?

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Definitions:

Proportions

The fraction of a whole expressed as a percentage, ratio, or fraction, representing parts of a larger quantity or population.

P-Value

The possibility of encountering test findings at least as significant as the observed results, assuming the validity of the null hypothesis.

Normal Distribution

A bell-shaped distribution that is symmetric about the mean, where data near the mean are more frequent in occurrence than data far from the mean.

Sample

A subset of individuals from within a larger population used to approximate characteristics of the whole population.