Question

If a random sample of 50 cups of soda dispensed from a machine showed the mean amount of soda dispensed was 7.9 ounces with s=0.35 ounces, find the confidence level if the margin of error is 0.11904?

Answer 1

$n=50 \\ \bar{x} = 7.9 \\ s=0.35 \\ ME = 0.11904 \\ CI = \bar{x} ± ME \\ CI = 7.9 ± 0.11904 \\ CI = (7.78096, 8.01904)$