The Acme Company manufactures widgets. The
distribution of widget weights is bell-shaped. The
widget weights have a mean of 57 ounces and a
standard deviation of 11 ounces.
Use the Standard Deviation Rule, also known as the
Empirical Rule.
Suggestion: sketch the distribution in order to answer
these questions.
a) 68% of the widget weights lie between
and
b) What percentage of the widget weights lie between
24 and 68 ounces?
%
c) What percentage of the widget weights lie above 35?
%