What are the approximate numbers of participants needed for each of the following planned studies to have 80% power, assuming equal numbers in the two groups and all using the 0.05 significance level? (Be sure to give the total number of participants needed, not just the number needed for each group.) Click the icon to view the values for the planned studies. Click the icon to view a table of participants needed based on effect size. Study (a) would need participants in order to have 80% power.X Planned studies Expected H1 H2 Tails (a) 12 18 30 (b) 12 36 30 N O N- (c) 12 42 60 12 18 30Table of participants needed for 80% power Approximate Number of Participants Needed in Each Group (Assuming Equal Sample Sizes) for 80% Power for the t Test for Independent Means, Testing Hypotheses at the 0.05 Significance Level. Effect Size Small (0.20) Medium (0.50) Large (0.80) One-tailed 310 50 20 Two-tailed 393 64 26 Print Done