Question

An airline serves bottles of Galena Spring Water that are supposed to contain an average of 10 ounces. The filling process follows a normal distribution with process standard deviation 0.07 ounce. Twelve randomly chosen bottles had the weights shown below (in ounces).
(a) Set up a two-tailed decision rule to detect quality control violations using the 5 percent level of significance.
(b) Carry out the test.
(c) What assumptions are you making, if any?


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  • CreatedAugust 19, 2015
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