Check my work mode : This shows what is correct or incorrect for the work you have completed so far. It does not indicate compl The manufacturer of a laser printer reports the mean number of pages a cartridge will print before it needs replacing is 12,200 . The distribution of pages printed per cartridge closely follows the normal probability distribution and the standard deviation is 820 pages. The manufacturer wants to provide guidelines to potential customers as to how long they can expect a cartridge to last. How many pages should the manufacturer advertise for each cartridge if it wants to be correct $99 \%$ of the time? (Round z value to 2 decimal places and your final answer to the nearest whole number.)/ (x) Answer is complete but not entirely correct. SP.AS. 1147