|
The mean time to earn a bachelor s degree is 5.8 years (Education Planning Resources website, December 5, 2015). Suppose you would like to determine whether the mean time to earn a bachelor s degree is significantly less for students who attend private universities. Data on the time to earn a bachelor s degree for a random sample of 50 individuals who recently earned their bachelor s degrees from private universities are available in the DATAfile named YearsToGrad.
a. State the hypotheses that should be used to test whether the mean time to earn a bachelor s degree is significantly less for students who attend private universities.
b. U se the data in the DATAfile named YearsToGrad to compute the sample mean, the test statistic, and the p-value.
c. Use a 5 .05. What is your conclusion?
d. Repeat the hypothesis test using the critical value approach. |
| New search. (Also 1294 free access solutions) |