The coffee and soup machine at the local subway station is supposed to fill cups with 6 ounces of soup. Ten cups of soup are bought with results of a mean of 5.93 ounces and a standard deviation of .13 ounces. Construct a 99 percent confidence interval for the true machine-fill amount.
A) [5.75, 5.99]
B) [5.85, 6.05]
C) [5.90, 6.00]
D) [5.70, 6.16]
E) [5.80, 6.06]

Question

Quizplus · Accepted Answer

[± ] = [5.93 ± 3.250(.13/ 3.162)] = [5.93 ± .13]
= [5.80, 6.06]

The Coffee and Soup Machine at the Local Subway Station