GBS221: Essay 1
In the described scenario, the first question that asked for the number of products
that that company sells will collect quantitative data since they are collecting data based on a
numerical scale, and it uses ratio level of measurement. S

Statistical Quality Control
There are two sources of variation in a quality measure:
(1)
(2)
Quality measures that come from counting are called _ and some examples are
_.
Quality measures that are measured and are based on a continuous scale are called
_

Powerpoint
Mean
Std Dev
sample
50
1.5
9
std error mean
0.5
note
48.5 minus -3
51.5 plus 3
lower control limit
upper contrlol limit
Total defective in
all sample of 400
0.016
Std Error of Prop
0.006
lower control limit
upper control limit
-0.003
0.035
0
po

PROBLEM 33
pg 369
problem 48
p bar
z a/2 95%
MOE
0.35
1.9599639845
0.5
sample size
3.4957275268
HO<=
HA >
4
4
std Dev
sample size
mean
test statistic
alpha 0.01
0.5
60
4.5
2.326347874
std error of mean
z value
p value
0.0645497224
7.7459666924 reject beca

problem 7 pg 313
Problem 11 pg 313
Mean
std Dev
n sample size
std error of mean
prob of + or - 10
prob
5
8
10
7
10
14
Mean x bar
std Dev
9
3.10
57
61
86
74
72
73
20
57
80
79
83
74
Mean x bar
std Dev
68
17.89
1697
87.4
30
15.96
1687
0.469134
note: anytime

TO
Golden State Warriors
San Antonio Spurs
Cleveland Cavaliers
Toronto Raptors
Oklahoma City Thunder
Los Angeles Clippers
Atlanta Hawks
Boston Celtics
Miami Heat
Charlotte Hornets
Indiana Pacers
Detroit Pistons
Portland Trail Blazers
Dallas Mavericks
Memp

PAR
sample size
x bar
std Dev
point est difference
Confidence interval
at z/2.05
std error of difference
between 2 sample mean
Margin of error
confidence of error
confidence interva
lower limit
upper limit
HO(xbar 1-xbar2) <=
HA(xbar1-xbar2)>
Test Statist

problem 7 pg 350
mean
std Dev
n sample
z a/s 95%
std errors
Margin error
confidence
1599
600
50
1.959964
84.85281
166.3085
1432.7
Mean
std Dev
n sample
z a/s 90%
std error
margin error
confidence
3486
650
120
1.644854
59.33661
97.60004
lower limit
upper l

problem 3 pg 386
two tale
powerpoint prob
HO<=
HA >
x bar mean
std Dev
sample size
.05 level of significance
Test z statistic
std error of mean
z value
p value
HO =
HA not =
12
12
13.25
3.2
40
1.644853627
0.505964426
2.470529422 reject null because z valu

GBS211 Essay 2
To determine whether or not the PIRON should pursue the Phoenix market, we
should firstly determine the basic statistics given the data sample. There are 29
entries in the data pool. 17 of them are potential client despite of the industry t

Essay 3
According to the information offered, the sales representative have
contacted 500 companies in the past 180 days and 75 of them actual
turned out to be a contract. The company, on average, can secure one
contract every 2.4 days, and the contact-co

1. John and Mario, owners of Mi Casa Front Porch Restaurant are planning a big Super
Bowl event for their Glendale Westgate restaurant location and have received a permit
for additional outside seating. They are debating on whether to invest in a tent for