\( \definecolor{colordef}{RGB}{249,49,84} \definecolor{colorprop}{RGB}{18,102,241} \)
A company organizes a training workshop to improve employees' typing speed. The typing speeds (in words per minute) of 8 employees are recorded before and after the workshop.
Employee A B C D E F G H
Before 45 52 60 58 40 65 70 48
After 50 55 62 64 42 68 69 55
Test at the \(1\pourcent\) significance level whether the workshop has increased typing speed.
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