Hints and/or comments about Problem 11
- Be sure to report all p-values using 2 significant digits.
(E.g., 0.29, 0.040, and 0.000051 all have 2 significant digits.)
- As always, it would be a violation of the GMU Honer Code if one simply
reported the test statistic value and p-value that someone else
computed. While it is okay to talk to other students about the HW
problems, you shouldn't turn in answers that you didn't obtain in a
legitimate way.
- For part (a), give the values of the test statistic and the degrees
of freedom, along with the p-value.
- For part (b), keep in mind that I want two accurate significant
digits for the p-value. To use canned software to achieve this, it may
require a bit of trial and error (done in an intelligent way,
hopefully). If you obtain the p-value by using simultaneous confidence
intervals the way I did, you don't have to give a value for the test
statistic.
- For part (c), give the value of the t statistic and the
proper degrees of freedom, along with the p-value,
obtained from each pair of samples. Be sure
to obtain the df values by rounding to the nearest integer. Then
report the overall p-value resulting from the testing procedure.