Acompany offered one half of its employees a bonus if the production of light bulbs increased by 20%. 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 15 and production in the bonus group increased by a mean of 10. what is the correct order of steps to determine if the results are significant? a. randomly separate the employees' individual results into two groups. b. calculate the mean of each group. c. calculate the difference of the means. d. run the experiment many times. e. calculate the probability of a difference of 5. select one: a. a, b, c, d, e b. d, e, a, b, c c. c, e, a, b, d d. a, b, d, c, e