Sea Turtles who nest in the Southern Caribbean beaches are facing population decline due to global warming, pollution, and increased tourist traffic in their nesting areas. Because many sea turtles in the area are dying before reaching full adulthood, the average size of the sea turtles has declined over the past 50 years. In 2010, 588 sea turtles were captured and their carpace length (shell length) was measured (They were then tagged and released. Assume these sea turtles were representative of the sea turtle population in the area. ). They had an average length of 95.2cm with a standard deviation of 11.5cm. In 2011, officials in the Southern Caribbean instituted new rules about tourism and led a campaign to protect sea turtles. To check the effectiveness of the new rules, researchers decided to use carapace length to see if the new rules had increased sea turtle size. In 2017, scientists used careful sampling procedures to capture 442 sea turtles in a representative manner. The sea turtles in 2017 had an average carapace length of 97.2 with a standard deviation of 11.8cm. The researchers conducting the study found that average sea turtle carapace length had increased between 2011 and 2017 (difference in means 2.0, 95% CI: 0.56, 3.44) . The explanatory variable for this study is [ Select ] The response variable for this study is [ Select ] Ho (in words): [ Select ] A. /2017 - /2011 0 Ho (in symbols): B. /2017 - #2011 7 0 Letter choice: | [ Select C. #12017 -#42011 20 D. #2017 2011 HA (in words): [ Select ] A. / 2017 #2011 0 HA (in symbols): B. /2017 #2011 70 letter choice: [ Select ) C. /12017 #2011 2 D. 2017 /2011 5 0 An appropriate test is [ Select ] -sided because [ Select ] The result [ Select ] statistically significant because the confidence interval [ Select ] contain [ Select ] We would [ Select ] the null hypothesis