Consider following sample observations on stabilized viscosity of asphalt specimens.
Suppose that for a particular application, it is required that true average viscosity be 3000. Does this requirement appear to have been satisfied? State the appropriate hypotheses. (Use ? = 0.05.)
Test the appropriate hypotheses. (Round your answers to three decimal places.)
| test statistic |
|
t = |
|
| critical value |
|
t = |
± |
What can you conclude?
Reject the null hypothesis. There is sufficient evidence to conclude that the true average is viscosity differs from 3000.
Reject the null hypothesis. There is not sufficient evidence to conclude that the true average is viscosity differs from 3000.
Do not reject the null hypothesis.There is not sufficient evidence to conclude that the true average is viscosity differs from 3000.
Do not reject the null hypothesis. There is sufficient evidence to conclude that the true average is viscosity differs from 3000.