Hints and/or comments about Problem 12
- 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. To improve your partial credit in
the event that you get the wrong answer, give the unrounded degrees of
freedom value in addition to the integer value that you used. Also,
giving the values of the numerator and denominator of the test
statistic can help to show that you did part of the computations
correctly.
- For part (b), give the value of the test statistic
in addition to the p-value.
- For part (c), give the value of the t statistic, along with the
proper degrees of freedom, obtained from each pair of samples. Be sure
to obtain the df by rounding to the nearest integer. Then
use the tables to make a statement about the p-value. (E.g., with the
tables I gave you, for some data sets it may be that the best you can do
is put p-value < 0.01.)