The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 53 ounces and a standard deviation of 11 ounces. Use the Standard Deviation Rule, also known as the Empirical Rule. Caution: Using tables or Excel for this may produce a wrong answer. Use the 68-95-99.7 rule. Suggestion: sketch the distribution in order to answer these questions. Do not round your answers. a) 68% of the widget weights lie between and (Enter the smaller value in the first box and the larger value in the second box.) b) What percentage of the widget weights lie between 31 and 64 ounces? % c) What percentage of the widget weights lie above 20 ?
The Acme Company manufactures widgets. The distribution of widget weights is bell-shaped. The widget weights have a mean of 53 ounces and a standard deviation of 11 ounces.
Use the Standard Deviation Rule, also known as the Empirical Rule.
Caution: Using tables or Excel for this may produce a wrong answer. Use the
Suggestion: sketch the distribution in order to answer these questions. Do not round your answers.
a) 68% of the widget weights lie between and (Enter the smaller value in the first box and the larger value in the second box.)
b) What percentage of the widget weights lie between 31 and 64 ounces? %
c) What percentage of the widget weights lie above 20 ?
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