Annual sales, in millions of dollars, for pharmaceutical companies follow. Click on the datafile logo to reference the data. 8,408 1,374 1,872 8,879 2,459 11,413 608 14,138 6,452 1,850 2,818 1,356 10,498 7,478 4,019 4,341 739 2,127 3,653 5,794 8,305 a. Provide a five-number summary (in millions of dollars). Smallest value 608 First quartile 1861 (to decimal) Median 4019 Third quartile 8356.5 (to decimal) Largest value 14138 b. Compute the lower and upper limits (in millions of dollars) (to decimals). If required, enter negative values as negative numbers. Lower limit -9135.25 Upper limit 23881.25