6. What statistical procedure should be used to answer this research question? (Star Trek scenario) A one-sample t-test for means A one-sample t-confidence interval for means A matched-pairs t-test for means A matched-pairs t-confidence interval for means A two-sample t-test for means A two-sample t-confidence interval for means A one-sample z- test for proportions A one-sample z-confidence interval for proportions A two-sample z- test for proportions A two-sample z-confidence interval for proportions Analysis of Variance (ANOVA) Chi Square Test for Independence 7. What statistical procedure should be used to answer this research question? (tree spray scenario) A one-sample t-test for means A one-sample t-confidence interval for means A matched-pairs t-test for means A matched-pairs t-confidence interval for means A two-sample t-test for means A two-sample t-confidence interval for means A one-sample z- test for proportions A one-sample z-confidence interval for proportions A two-sample z- test for proportions A two-sample z-confidence interval for proportions Analysis of Variance (ANOVA) Chi Square Test for Independence