A Large Corporation Wants to Determine Whether or Not the Typing

A large corporation wants to determine whether or not the typing efficiency course given at a local college has any influence on typing speed of secretaries. A sample of 6 secretaries is selected, and they are sent to take the course. The typing speed of the secretaries in word per minute (WPM) are shown below:
At
, test if it can be concluded that taking the course increased the typing speed of the secretaries?

Correct Answer:

Verified

we reject
and conclude ...

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