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mean 1.05 ounces and standard deviation 0.08 ounce.
(a) if the restaurant's goal is to put between 1 and 1.2
ounces of ketchup on each burger, about what percent
of the time will this happen?
(b) suppose that the manager adjusts the machine's set-
tings so that the mean amount of ketchup dispensed is
1.1 ounces. how much does the machine's standard
deviation have to be reduced to ensure that at least
99% of the restaurant's burgers have between 1 and
1.2 ounces of ketchup on them?
r2.8 where the old folks live here are a stemplot and
numerical summaries of the percents of residents