A researcher completed a research project commissioned by a large corporation in which he compared the percentage of times a sample of employees responded to a memo sent by electronic mail with the percentage of times they responded to a memo sent through regular company mail. Use the following results to answer problems 8 and 10. Electronic Mail Company Mail X = 75 X =73 S = 5 S = 10 8. Based on the data collected in this study, which type of mail produced the most consistent results? Include the basis for answer. 26 9. Of the two types of mail, which has the highest range of scores