When we take data at work, we always do it over a period of time. To me, just one sample set does not show enough data to come to that conclusion. Also it is one batch of bags. I think you would need to have an average of data from different batches & samples to prove your data is accurate and support your claim.
B.)10 inches
----------------
you need to plug in 10
----------------
thats if you don't know what to do
---------------
the easy way
3,200,00 converted to scientific notation is 3.2 x 106