Consider the Five Number Summary of Hourly Wages ($) for a Sample

Multiple Choice

Consider the five number summary of hourly wages ($) for a sample of advertising / promotion managers. $$\begin{array} { | c | c | c | c | c | } \hline \text { Min } & \text { Q1 } & \text { Median } & \text { Q3 } & \text { Max } \\\hline 19.64 & 29.36 & 34.18 & 40.86 & 57.26 \\\hline\end{array}$$ Suppose there had been an error and that the lowest hourly wage was $15.50 instead of
$19) 64.This would result in

A) an increase in the median.
B) an increase in the standard deviation.
C) a decrease in the range.
D) a decrease in the IQR.
E) an increase in the mean.