Even Answers
Chapter 3
3.2
4
3.4
41.7
3.12
a. 9
b. 1.75
c. 6.8571
d. 2.6186
3.14
s2 = 433.9267
s = 20.8309
3.18
Set 1: 14.2215
Set 2: 14.5344
CV1 21.71%
CV2 10.20%
3.20
a. 623
b. 119.37
c. 29,728.23
d. 172.42
f. -0.70
g. 58.98%
3.24
3, 2.67
3.26
1.07, 0.5

Chapter 9 Quiz
In testing hypotheses, the researcher initially assumes:
the alternative hypothesis is true.
errors cannot be made.
the null hypothesis is true.
the population parameter of interest is known.
The probability of committing a Type I error is

Chapter 10 Quiz
If the test statistic for testing the hypothesis that the difference between two population
proportions is greater than zero using data from large samples is 1.38, then _.
the null hypothesis is rejected at 0.100 significance level
the nul

MC33
Let A be the event that a student is enrolled in an accounting course, and let S be the event that a
student is enrolled in a statistics course. It is known that 30% of all students are enrolled in an
accounting course and 40% of all students are enr

Chapter 4
Answers to even-numbered problems
4.10
a. .38
b. .84
c. .49
d. 1.000
4.12
a. .92
b. .31
c. .08
4.14
a. .63
b. .28
c. .37
d.
Faculty
References
Y
N
.19
.54
N
.09
.37
.46
.44
Transcript
Y
.35
.56
1.00
4.18
a. .0858
b. .6942
c.
U
Yes
I
Yes
No
.15
.

Computer Assignment 1 (Class Description)
According to statistical data the night class of DSCI 3231 is a very diverse class of
students in many different aspects. University of Houston-Clear Lake, being a senior college has
a variety of students that var