The Following Data Represent the Ages (In Years) of a Sample

question 110

Essay

The following data represent the ages (in years) of a sample of 25 employees from a government
department: $$\begin{array} { | l | l | l | l | l | l | l | l | l | l | } \hline 31 & 43 & 56 & 23 & 49 & 42 & 33 & 61 & 44 & 28 \\\hline 48 & 38 & 44 & 35 & 40 & 64 & 52 & 42 & 47 & 39 \\\hline 53 & 27 & 36 & 35 & 20 & & & & & \\\hline\end{array}$$ Find the upper quartile of the ages.

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Definitions:

Confidence Interval

A range of values, derived from the sample data, within which the true population parameter is expected to lie, at a given probability.

Degrees of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution, often related to the number of independent observations in a data set minus any constraints.

F Statistic

A ratio derived from the analysis of variance (ANOVA) that compares the variance between group means to the variance within groups.

Automobile Factory

A facility specialized in the manufacturing and assembly of motor vehicles and related components.