You are working at a silver mountain tea bottling plant! the bottles of iced tea are supposed to be filled with 12 ounces of liquid. a recent sample of 36 bottles returned an average fill level of 12.02 ounces. historically, the process has a standard deviation of .04 ounces. create a 95 percent confidence interval for the fill rate!

Step-by-step explanation:

Given : Sample size : n= 36 , which is a large sample (n>30) so the test applied here is z-test.

Significance level :

Using Standard normal table , Critical value :

Sample mean :

Standard deviation:

The confidence interval for population means is given by :-

i.e.

Hence, the 95 percent confidence interval for the fill rate =

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step-by-step explanation:

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step-by-step explanation: