Ten Administration Staff Members Were Selected at Random from Among $\quad$

question 49

Essay

Ten administration staff members were selected at random from among the secretaries of a large university. The typing speed (number of words per minute) was recorded for each administration staff member on two different brands of computer keyboards. The following results were obtained. $\quad$ $\quad$ $\quad$ $\quad$$\text { Computer Keyboard }$
$\begin{array} { | l | c | c | } \hline \text { Stafmen ber } & \text { Brand A } & \text { Brand B } \\\hline \text { Amy } & 75 & 74 \\\hline \text { Betty } & 85 & 86 \\\hline \text { Jack } & 73 & 72 \\\hline \text { Donna } & 79 & 70 \\\hline \text { Ellen } & 91 & 85 \\\hline \text { John } & 80 & 73 \\\hline \text { Gwen } & 83 & 72 \\\hline \text { Wejing } & 74 & 65 \\\hline \text { Ingrid } & 81 & 79 \\\hline \text { Peter } & 70 & 64 \\\hline\end{array}$ Assume that the typing speeds are not normally distributed.
Perform the Wilcoxon signed rank sum test at the 5% significance level.

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Definitions:

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Fallacy

An error in reasoning that renders an argument logically invalid.