BUS3580-ONLH-Statistics for Business and Economics
Week 3 Homework-Chapters 5-7
#52:
A. .0769
B. .0588
C. .0045
#92:
A1.
A2.
A3.
B1.
B2.
B3.
B4.
#40:
A. $300 or $0
B. Wins = .0125/Loses = .9875
C. There are two end results, wins or lose. The chances for w

#32:
A. 6
B. 2.2
C. 2.2
D.
Class
2.2-4.6
4.6-6.8
Frequenc 2
7
y
E. Resembles a bell with two points
6.8-9
11
9-11.2
12
11.2-13.4
2
13.4-15.6
2
#72:
A. 112.86
B. 112
C. 112
#86:
A. Prices cluster between $175,000-$250,000. Mean selling prices is $221,00; m

Miami Dade College
QMB 2100 Basic Business Statistics 2016
Practice Test #2
1. A dot plot is best applied when _.
a)
b)
c)
d)
The mean, median, and mode are equal
The general shape of a distribution is symmetric
The relationship between two variables is s

BUS3580-ONLH-Statistics for Business and Economics
Week 5 Homework-Chapters 10-11
#24:
A. No
B. The z distribution can be used as a test statistic because we know what he variance population
is.
C. .0274
#50:
A. No; .405
B. Yes; 1.61185
#36:
A. No modific

BUS3580-ONLH-Statistics for Business and Economics
Week 6 Homework-Chapter 12
#30:
A. No difference in flight times
B. (55.714-50.5) 2.037
20.9
1
( 7
+
1
14 ); reduction is 5.21 4.31; difference is
between .90 & 9.52 minutes
#40:
A. No; .405
B. Yes; 1.61

BUS3580-ONLH-Statistics for Business and Economics
Week 4 Homework-Chapters 8-9
#22:
A. .2
B. .9862
C. .06827
D. Very likely
#48:
No; .7851
#44:
A. 2,409
B. 2215 to 2598
#70:
A. 152.82 - 176.12
B. 95.41 - 105.10
C. 98.58 116.68

BUS3580-ONLH-Statistics for Business and Economics
Week 7 Homework-Chapter 13-14
#46:
A. (100/(20-2) = 2.46
B. r2 = 300/400 = 0.75
C. r =
#62:
.075=0.866
A. Regression equation:
; r is negative
y 1= 64.79 + 0.0703X: Selling Price $219,430. Confidence Int

Compare and contrast the fundamental differences between the process improvement
framework and the problem solving framework.
The problem solving framework define the scope of the problem, review the current situation,
identify improvements or solutions t