Trials
Success Probablity
n
p
20
0.05
Binomial Probability Distribution Function
A.
MEAN:
STANDARD DEVIATION:
B.
C.
D.
P (x)= n C x *p^x * (1-p)^n-x
Find exact x=
0
P(x)= 0.35848592
Number Success X
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
1
4.3588989435
P(X
Standard Deviation
Sample
Mean
a. use a=.01
b. p-value
c. 99%
d. conclusion
critical value
work
7.0710678119
-0.005
0.0028284271
-1.767766953
0.02
50
0.995
Zstat = -1.77
0.767
0.0101
0.0101
The results of a and c are not the same
-2.58
2.85
3.575
0.002828
Amout Spent
7.42
6.29 X
5.83 S
6.5 u
8.34 n
9.51
7.1
6.8
5.9
4.89
6.5
5.52
7.9
8.3
9.6
a.t stat
b. p-value
c.
d.
7.09333333
1.40603123
6.5
15
3.87298335
0.3630357
3.22034999
0.0062 The result is significant at p<.05
The population distribution is approxim
Solve the following problem:
In the 2000 U.S. Census, the ages of individuals in a small town were found to be the following:
<18
18-35
>35
20%
30%
50%
in 2010, ages of n=500 individuals from the same small town were sample. Below are the results:
<18
18-
Suppose that another bank branch, located in a residential area, is also concerned with
the noon-to-1:00 p.m. lunch hours. The waiting time, in minutes, collected from a
sample of 15 customers during this hours, are stored in Bank 2:
A.
Mean:
Median:
7.11
Heavenly Chocolates Managerial Report- Chapter 2 Case Assignment
1. The average shopper spends 12.81 minutes on the website, views 4.82 pages, and
spends $68.13. See data tables and histograms below:
Length of Time Shoppers Spend on Website
Interval
Bin (
ADMN602 ASSIGN 1: Negative News Email
SubjectAn Important Announcement of The Companys Decision-making
FromJiayu LiCatrina
ToAll Employee:
Today we have an important message to inform you that last week, in order to meet
the needs of the company's future
In response to the realities of a deteriorating economy, we're taking important steps to realign
Microsoft's business. I want to tell you about what we're doing and why. Today we announced
second quarter revenue of $16.6 billion. This number is an increas
Potential Essay Questions
Shane Mahoney
Adolfo Gomez
Amirah Alsubaihy
Trenell Alfred
Kyle Oakleaf
Austin Bond
Uziel Rangel
Alnan Masrahi
Meryl Ilin
Tyler Estep
Group #16
1. Why do "court decisions" play a prominent role in applying statutes in deciding ca
Household Income Case
Complete the following project in preparation for a group presentation and
analysis. Present your results in a report to faculty. (TBA)
Instructions: Use the information presented in this packet for this
assignment. To complete this
sample mean
Population SD
Sample size
Zstat
Z0.005
0.995
0.02
50
-1.767767
2.58
P(Z<-1.76777)=0.038547
Pvalue = 0.077094
a) there is not enough evidence to reject the null hypothesis, so the claim is rej
b) P value is bigger than 0.05, so we accept the hy
age
0.2
0.3
0.5
121
288
91
121
288
91
100
150
250
alpha=0.05 df = 3-1 = 2
critical value = 5.99
chi square
<18
18 to 35
>35
x^2=232.494
232.494>5.99
age of 2010 population are different from the expected value that is based on 2000 population.
7.42
6.29
5.83
6.5
8.34
9.51
7.1
6.8
5.9 a
4.89
6.5
5.52 d
7.9
8.3
9.6
c
d
sample size
sample mean
sample SD
critical value
t stat
15
7.093333
1.406031
2.1448
1.63437
-2.1448 <1.63437<
2.1448
Dont reject H0 at 5% level of significcance. There is not enoug
Definitions:
Statistic: raw data calculated from a sample
Sample (of elements): a portion/subgroup of the pop.
Population: entire group of interest/the whole
Parameter: something calculated from the pop.
Experiment: Process by which an observation is obta
Probability distribution = A table listing of all outcomes of an experiment along with their
probabilities
Random variable = numerical description of the outcome of an experiment = what you want to
focus on in an experiment
Discrete random variable:
Conti
HW #2
(DUE: Monday, 01/25)
As before, I have posted HW2.xlsx. It has all necessary data (bottom tabs) for this homework. When you
are done, upload it to your individual site using FILE EXCHANGE.
CASE: Century National Bank (p.128)
Data: HW #2.xlsx (Bankin
Spending ($)
Mean
Standard Error
Median
Mode
Standard Deviation
Sample Variance
Kurtosis
Skewness
Range
Minimum
Maximum
Sum
Count
Confidence Level(95.0%)
49.348
2.015169393
49.995
#N/A
9.0121115
81.21815368
2.258706925
-0.99607984
38.05
23.78
61.83
986.96
Age
Profit
Age
1
Profit 0.2615289911
The relationship is positive or
correlation coefficient is positi
of the buyer increases, the pr
Moreover, this relationship is
becasue it is close to ZERO tha
1
Scatter Plot of Profi t vs. Age
$3,500
$3,000
$2,500
$2,
HW #4
(DUE: Monday, 02/15)
For this homework, HW #4.xlsx is posted. When you are done, upload it to your individual site using
GROUPS FILE EXCHANGE.
Q1.
How to obtain the Confidence Interval
CONFIDENCE.T function (when the population standard deviation is
FINAL EXAM
DUE: MONDAY, 03/14
There are three Excel files to be used for the exam.
When you are done, upload three files to your individual GROUPS site.
FinalQ1-FIRST-LAST NAME.xlsx / FinalQ2-Q7-FIRST-LAST NAME / FinalQ8-FIRST-LAST NAME.
Q1.
A separate fi
MIDTERM EXAM
DUE: MONDAY, 02/08
Q1.
A manufacturer of microwave ovens wants to know what percentage of all of their
microwave ovens are defective. When 450 of their microwave ovens are selected at
random and examined, 0.4% are found to be defective. (1 po