Each car in a sample of seven cars was tested for nitrogen-oxide
Each car in a sample of seven cars was tested for nitrogen-oxide
emissions (in grams per mile), and the following results were obtained.
0.05, 0.12, 0.17, 0.16, 0.15, 0.05, 0.16
__ < μ < __?
(Round to the nearest thousandth as needed.)
b. One agency requires that nitrogen-oxide emissions be less than 0.158
0.158 gram/ mile. Someone claims that nitrogen-oxide emissions have a mean equal to 0.158
0.158 gram/mile. Does the confidence interval suggest that this claim is not valid?
Yes
No