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Need Help? Click to Watch the Introduction to Correlation Coefficient Video. Click this Video for Finding Correlation Coefficient by Using Formula. Yessica thought that there was a correlation between the amount of time students slept the evening before their final exam and their final exam grade. She took an SRS of 5 students in her class and recorded the sleep time the evening before their final exam, and their final exam score. Let the sleep time the evening before the final exam represents the explanatory variable, and the final exam score be the response variable. Below is a sample data set. (hour) y (score) 5 60 2 9 97 3 51 AW 98 5 6 78 Calculate the sample correlation coefficient (r) to three decimal places. Why would we expect the correlation coefficient to be positive? There is no change in exam score to sleep time As the sleep time increases, exam score decreases As the sleep time decreases, exam score increases As the sleep time increases, exam score increases Question Help: Video 1 Video 2 MO hp esc C % N 3 4 5 6 tab W eNeed Help? Click to Watch the Introduction to Correlation Coefficient Video. Click this Video for Finding Correlation Coefficient by Using Formula. Fill out the table below: y cy 2 2 19 3 18 3 2 19 4 A 9 5 10 16 SUM Find the correlation coefficient and report it accurately to three decimal places. r= Question Help: Video 1 Video 2 Submit Question OM P esc -> # $ - 2 B 4 5 tab W e Q a SQuestion 1 Fill out the table below: C y cy 3 10 N 11 W 11 4 9 14 10 21 SUM The regression equation is: y = Submit QuestionQuestion _ Need help to solve the problem by hand? Click this video! Fill out the table below: y cy 9 2 2 14 A 14 4 21 5 10 21 SUM The correlation coefficient is (round to three decimal places): 7 - Find the slope, intercept and correlation coefficient and report them accurately to three decimal places. The regression equation is: y = Question Help: Video 1 ) Video 2 Submit