please see link and complete the three questions on page 445 http://books.google.com/books?id=s2ugfZEUS4EC&pg=PA445&lpg=PA445&dq=analyze+the+data+in+figure+11.22+and&source=bl&ots=CaVCzKi3LY&sig=7i55VyPdQ_bx_kJl12-1Q_W1Z3g&hl=en&sa=X&ei=sUqIUciUE-7yiQLEp

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