Answer the question

Q3. Date Price 1-Jun-09 92.9001 2-Jun-09 92.9784 3-Jun-09 91.8021 4-Jun-09 92.6647 5-Jun-09 92.6843 8-Jun-09 92.3021 9-Jun-09 92.7725 10-Jun-09 92.5373 11-Jun-09 92.949 12-Jun-09 93.2039 15-Jun-09 91.0669 16-Jun-09 89.8318 17-Jun-09 89.7435 18-Jun-09 90.3994 19-Jun-09 90.7387 22-Jun-09 88.0177 23-Jun-09 88.0867 24-Jun-09 88.8439 25-Jun-09 90.7781 26-Jun-09 90.5416 29-Jun-09 91.3894 30-Jun-09 90.65 Required: Calculate the Upper Band and Lower Band