| 12 | Due: Thursday, December 6th |
- Pg. 721: 13.16 by hand OR SAS
- Pg. 734: 13.29 b-d by hand AND SAS. Is the sample
size large enough? Is this a test of homogeneity or of
independence? Why?
|
| 11 | Due: Tuesday, November 20th |
- Pg. 565: 11.72 c,d,e (9.83 in 7/e)
- Pg. 570: 11.80 b [they give you the output] (9.92 in 7/e)
- Pg. 571: 11.82 a-e using SAS [b means you should check the
assumptions] (not in 7/e)
|
| 10 | Due: Tuesday, November 13th
|
- Pg. 455: 10.22b using SAS. State H0 and HA,
your conclusion, and check the assumptions. (7.76 in 7/e)
- Pg. 517: 11.10 (9.10 in 7/e)
|
| 9 | Due: Thursday, November 8th
|
- Pg. 440: 10.6 (not in 7/e)
- Pg. 453: 10.16 a-c (7.72 in 7/e)
|
| 8 | Due: Thursday, October 25th
|
- Pg. 333: 8.24 by hand and SAS. Also test
H0: sigma2=4 vs. HA: sigma2>4 by hand. (6.24 in 7/e)
- Pg. 387: 9.17 by hand and SAS. Also use SAS to test if the variances
are equal and check that the two populations are approximately normally distributed.
(7.15 in 7/e)
- Pg. 408: 9.57 Verify if the samples are large enough and calculate the
p-value. (8.15 in 7/e)
|
| 7 | Due: Thursday, October 18th
|
- Pg. 311: 7.60 (5.54 in 7/e)
- Pg. 327: 8.7, 8.10, 8.12 (6.7, 6.10, 6.12 in 7/e)
- Pg. 367: 8.98 b,c (6.83 a,b in 7/e)
|
| 6 | Due: Thursday, October 11th
|
- Use the data in pg. 299 #7.34 (5.30 in 7/e). Both by hand and SAS
construct a 90% CI for the mean and standard deviation. Use SAS
to construct a Q-Q plot and say if the assumptions appear to be met.
- Pg. 304: 7.37 (5.31 in 7/e)
|
| 5 | Due: Thursday, October 4th
|
- Pg. 260: 6.3 a,c,d (4.90 in 7/e)
- Pg. 271: 6.24a-c (4.102 in 7/e)
- For n=20 (df=19) find P(t<2.093) and
P(chi2>7.63273)
- Give three possible ideas for the project: one using
census data, one using a sample, and one using an experiment
|
| 4 | Due: Thursday, September 20th
|
- Pg. 177: 4.25 a,b (4.15 in 7/e)
- Pg. 191: 4.42 a-c (4.34 in 7/e)
- Pg. 226: 5.16 a,c (4.46 in 7/e)
- Pg. 227: 5.20a, 5.24a (4.48, 4.50 in 7/e)
|
| 3 | Due: Thursday, September 13th
|
- Pg.48: 2.44 c-f using SAS. Also, use SAS to form side
by side boxplots of the three groups.
- Pg. 109: 3.6
- Pg. 136: 3.51 (Give an example if false.)
|
| 2 | Due: Thursday, September 6th
|
- Pg. 54: 2.52d (also for median). What happens to each
of these four statistics if each observation has 5 added to it?
if each observation is multiplied by 5?
- Pg. 63: 2.71 Explain how you got your answers.
|
| 1 | Due: Thursday, August 30th
|
- Pg. 14: 1.11, 1.12
- Pg. 35: 2.17 Construct a histogram by hand.
- Pg. 47: 2.38 Also, is it skewed? which direction?
|