Question 35 10 pts The Kaizen Blitz Lean Team has been charged with reducing cycle times for unloading a 20,000 TEU container ship from a mean of 15 days down to a mean of 3 days. Recommendations were made following the completion of the DMAIC - Define, Measure, Analyze, Improve, and Control process improvement project. Independent random samples of 16 cycle times were taken before the implementation of the recommendations and 16 were taken after implementation. Assume both populations are normally distributed with equal population variances. To test for the impact on mean cycle time, which of the following statistical test would you recommend? O Z-test for differences in proportions O t-test for differences in means Z-test for difference means