Question: A manager implements a new efficiency program, designed to decrease the time it takes for works to process orders.A random sample of 5 workers are

A manager implements a new efficiency program, designed to decrease the time it takes for works to process orders.A random sample of 5 workers are monitored and their average time take to process an order before and after the training is given below.

Person 1 2 3 4 5

Before 40 41 24 25 30

After 33 38 12 26 24

If the manager conducts the appropriate hypothesis test to assess whether this program has been successful or not (in decreasing the time taken), what is the observed value of the test statistic? (define the difference as before - after)

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