Name: [6] A statistical analysis of 5,000 long-distance telephone calls made from the headquarters of a certain chain store indicates that the length of these calls is normally distributed with an average of 200 seconds with standard deviation of 40 seconds. od ole T (a) What is the chance that a particular call lasts between 180 and 240 seconds? [2] (b) How many calls lasted between 180 and 240 seconds? [2] (c) interval estimate of the almonia a zi air vor? 100.30 [ you h (d) What is the minimum length of a call so that it is one of the longest 1%?[2] [S] Squad on five stereotato mom leta sonario adf ai ta