I can't find the information I need to answer c

' 20.30 Inspecting Ground Chuck. The National Institute of Standards and Technology (NIST) ' publishes procedures for inspecting the advertised contents of packaged goods.12 The discussion of these procedures includes an example of inspecting the weights of a sample of packages of ground beef from a particular grocer. An SRS of 12 packages are weighed (in pounds) according to the NIST procedures. The table shows each of the actual weights along with the weight listed on tl package label. 'I'II CHUCK Labeled weight Measured weight ,_ 'rc. Carry out a t test to see if the mean difference in the measured weight minus the labeled weight is less than 0