A quality control inspector
measures the masses of boxes of
raisins. He wants to know if the
average mass of a box of raisins is
100 g. The inspector randomly
chooses boxes of raisins.
The masses, in grams, are:
99.1, 101.7, 99.8, 98.9, 100.8, 100.3,
98.3, 100.0, 97.8, 97.6, 98.5, 101.7,
100.2, 100.2, 99.4, 100.3, 98.8, 102.0,
100.3, 98.0, 99.4, 99.0, 98.1, 101.8,
99.8, 101.3, 100.5, 100.7, 98.7, 100.3,
99.3, 102.5
a) For the shipment to be approved,
the average mass of a box of
raisins must be at least 100 g.
Which average could someone
use to describe this shipment to
get it approved? Explain.
