Sta 350A Fall 2009 Dr. Fan Homework Set 1 Due Thursday, September 17, 2009, before class starts Note: For this homework, do all calculations by hand, not by Minitab. Feel free to check your answers using Minitab (no need to hand in Minitab output.) 1. Rea
5.38:
a. Readig time 95%: (7.8957, 10.3043)
b. Box Plot below :)
c. 95 percent of all students will fall between the reading time of 7.8957 and 10.3043. Only
5% of students will fall outside of this interval.
6.13
a. Pooled-variance T-statistic: 4.04
b. T
Ch. 11 Practice Problems
1.
Ammonium metavanadate reacts with sulfur dioxide in acidic solution as follows (hydrogen ions and H 2O omitted):
xVO3 + ySO2 xVO2+ + ySO42
The ratio x : y is
A)
B)
C)
D)
E)
1:1
1:2
2:1
1:3
3:1
2.
What is the oxidation state of