C. (2 pts) Mr. Coyote's assistant conducted her own analysis of the data. She used a two-tailed one-sample t test, and her SPSS printout is shown below. What should she conclude? a. the new equipment increased productivity significantly above 125 skates per day b. the new equipment decreased productivity significantly below 125 skates per day c. the new equipment didn't matter, and productivity stayed at 125 skates per day One-Sample Statistics Std. Error N Mean Std. Deviation Mean skates_per_day 14 127.71 4.581 1.224 One-Sample Test Test Value = 125 95% Confidence Interval of the Difference Mean df Sig. (2-tailed) Difference Lower Upper skates_per_day 2.217 13 045 2.714 07 5.36