Consider the following result for two samples taken from two populations. Calculate statistical power. Without changing the "system", what would you do to make the power higher? (The level of significance is a =0.05.) (You may use an online calculator https:/www.stat.ubc.ca/"rollin/stats/ssize2.html ) Sample A Sample B Sample Size 25 25 Sample Mean 24 30 Sample Standard Deviation 10 10 In the previous problem we increased alpha (a) to 0.25. What is the minimum sample size that provides a power of 0.9