Given the following scenario, rank the data for the Wilcoxon Rank Sum. A manager is looking at the ratings of two different customer service lines at the Telecom company where he works. Service Line A and Service Line B each received different ratings from 5 randomly selected customers. Answer the following question about the ranks. A+ is the highest grade, with D- being the lowest grade. Make your lowest letter score be ranked as "1." Service Line A Service Line B A+ A- B- B C+ B+ A- A+ B D- What is the numerical rank for an A+?

The correlation coefficient between the number of students and marks obtained in end semester exam. (13 marks) give the statistical meaning of the relationship between the number of students and marks b. obtained in end semester exam. (3 marks) draw the number of students and marks obtained in end semester exam scatter diagram c. (4 marks) check list write your name and id corectly write the question number properly use your own calculator. show all the steps to solve the problems. use the correct formula. answer in provided time. don't use your mobile for any purpose. write your answer up to two decimal places