MATH 040: Probability and Statistics Dr. Kimberly F. Sellers, Instructor Homework 4 Problems
1. p. 136, Problem 17 2. p. 136, Problem 18 3. p. 136, Problem 21 4. p. 137, Problem 29 5. p. 138, Problem 30 6. p. 138, Problem 31 7. p. 138, Problem 32 8.
10-14) Two-Sample T-Test and CI
Sample
1
2
N
12
16
Mean
10.94
12.15
StDev
1.26
1.99
SE Mean
0.36
0.50
Difference = (1) - (2)
Estimate for difference: -1.210
95% CI for difference: (-2.560, 0.140)
T-Test of difference = 0 (vs ): T-Value = -1.84
Both use Po
10-122. Construct a data set for which the paired t-test statistic is very large, indicating that
when this analysis is used, the two population means are different, but t for the two-sample ttest is very small so that the incorrect analysis would indicat
HW 3
Due on Oct 18, Tuesday before class.
The homework should be neat with the pages stapled together in the upper
left corner. The problems should be in sequential order. Only paper copies
will be accepted. Please show your work! The problem number is fr
HW 1
Due on Sep 15, Thursday before class.
The homework should be neat with the pages stapled together in the upper
left corner. The problems should be in sequential order. Only paper copies
will be accepted. Please show your work! The problem number is f
HW 3
Due on Oct 6, Thursday before class.
The homework should be neat with the pages stapled together in the upper
left corner. The problems should be in sequential order. Only paper copies
will be accepted. Please show your work! The problem number is fr
HW 2
Due on Sep 29, Thursday before class.
The homework should be neat with the pages stapled together in the upper
left corner. The problems should be in sequential order. Only paper copies
will be accepted. Please show your work!
10-4 (a) (b)
10-14
10-1
Monday, 15 September 2008
08-01. If the net force on an object is zero, what is the acceleration of the object? 1. positive 2. negative 3. depends on how many forces are applied 4. zero 5. I have absolutely no idea
Newtons Laws- III
Introductory P