A company offered one-half of its employees a bonus if the production of light bulbs increased by 30%. The other half of the employees was not offered a bonus. As the end of the month, production in the group that did not get the bonus offer increased by a mean of 20 and production in the bonus group increased by a mean of 30.

What is the correct order of steps to determine if the results are significant?

A) Run the experiment many times.
B) Randomly separate the employees’ individual results into two groups.
C) Calculate the probability of a difference of 10.
D )Calculate the difference of the means.
E) Calculate the mean of each group.

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