IS 310 4th Homework/Project
Find profit or loss of 40 companies.
Calculate the population parameters for all 40 companies
profit or loss
Select a sample of 10
Calculate the point estimators of the sample
Compare the results (Point estimators with Pop.
Par
IS 310 Homework #4
Company
1. Walmart
2. Kroger
3. UPS
4. UnitedHealth Group
5. AT&T
6. General Electric
7. AmerisourceBergen
8. Verizon
9. HP
10. Cardinal Health
11. Express Scripts
Holding
12. J.P. Morgan Chase
13. Home Depot
14. Citigroup
15. Philips 6
IS310 EXAM 1 Version A (60 minutes) -KEYS
1. The Department of Transportation of a city has noted that on the average there are 17 accidents per day. The average number of
accidents is an example of
a. descriptive statistics
b. statistical inference
c. a
Chapter 9 p.382 #60-64, 68-70
p.382 #60
a). H 0 : = 16 H a : 16 z p-value .0286 .05 z p-value .2186 .05 2.19 0.0286 reject H0 -1.23 0.2186 do not reject H0 continue operation
b).
c).
d).
Reject H 0 if z -z/2 OR z z/2 part b 2.19 1.96 reje
IS310 EXAM 1
Practice 2 with KEYS
1. Categorical data
a. indicate either how much or how many
b. cannot be quantitative
c. must be nonnumeric
d. none of the above
2. For ease of data entry into a university database, 1 denotes that the student is an under
1.
Statistical Inference about means and proportions with two populations
If we are interested in testing whether the proportion of items in population 1 is larger than the proportion of items in population 2, the
a.
null hypothesis should state P1 - P2 0
CHAPTER 12TESTS OF GOODNESS OF FIT AND INDEPENDENCE
1.
A population where each element of the population is assigned to one and only one of several classes or categories is a
a.
b.
None of these alternatives is correct.
Poisson distribution
t distribution
CHAPTER 11INFERENCES ABOUT POPULATION VARIANCES
1.A sample of 60 items from population 1 has a sample variance of 8 while a sample of 40 items from population 2 has a sample variance of 10. If we test whether the
variances of the two populations are equal
IS310 EXAM 1 Version A (60 minutes)
Mark A on scantron. If missing, 1 point deduction
Open Core document (Chapter 0 PPT) with your own hand-written notes. Calculator allowed. No laptop, no phone.
VIOLATORS WILL BE ESCORTED OUT OF CLASS ROOM
Name (must ent
Chapter 6
MGMT 421 Midterm 2
Chapters 6, 7, 8, 9, 14, 15
Summary:
Planning is usually done first because everything else depends on it. *KEY
managerial functions* While planning establishes directions and goals for
any busi ness, it is very difficult in
IS310 EXAM 1 Practice 2 without KEYS
1. Categorical data
a. indicate either how much or how many
b. cannot be quantitative
c. must be nonnumeric
d. none of the above
2. For ease of data entry into a university database, 1 denotes that the student is an un
IS310 EXAM 2 Version A (75 minutes) Chapters 3-5: Open notes
(including Chapter 0 PPT with your hand-written notes on it, Chapter
reviews 1-5), 3 probability tables & calculator. No phone/laptop
NAME (must enter) Mark A on scantron - If not, point deducti
IS310 EXAM 2 Version A (75 minutes) Chapters 3-5: Open notes (Chapter
0 PPT with your own hand-written notes), 3 probability tables & calculator.
No phone/laptop. KEYS
NAME (must enter) Mark A on scantron - If not, point deduction applies _
1. In statisti
IS 310 Final Notes
Chapter 9: Hypothesis Tests
1. Developing Null and Alternative Hypotheses a. Hypothesis testing: used to determine whether a statement about the value of a population parameter should or should not be rejected. b. Null hypothesis:
Jayme Guzman
IS310 Homework Assignment 1
Population:
Population estimates 68,166
Gender based Population:
Females 50.2%
Males 49.8%
Ethnicity Rate:
Caucasian or White 74.6
American Indian and Alaska Native alone, .04%
Black or African American alone 2.8%
First IS310 homework assignment
Due in two weeks
Do a survey about the demographic of the city/state you live in
and answer the following questions:
1. Population
2. Gender based population
3. Number of household
4. Mean annual income of households
5. Med
8/22/16
CHAPTER 1:
Data: raw fact that has no meaning by itself
Information: process data or meaningful data.
i.e.: SS#, telephone number, etc.
Once you process it into the computer it will become meaningful data
Entity or Element: characteristics of th
Discrete and Random Continuous Variable
-Example for Each one
What is Probability Distribution?
Required Conditions for a discrete probability function
What is the expected value and how to calculate it for Discrete Random Varible and how to calculate SD
IS310 Second Assignment
Refer to the traffic congestion cost table as the primary source of your
observations, and do the followings;
1.
Summarize the cost by calculating the mean
2.
Calculate the Standard deviation
3.
Use a bar graph for this data set. I
First IS310 homework assignment
Due in two weeks
Do a survey about the demographic of the
city/state you live in and answer the following
questions:
Population
Gender based population
Number of household
Mean annual income of households
Median annual inco
Assignment 3, due on Oct 17/19
A group of 8 students apply for MBA program at CBA, CSULB. According to the
historical data, probability of admittance at MBA program is .65. Using the formula
and showing all work and steps, compute the followings:
Probabil
Assignment 2
1) Mean = 475.8
2) Standard Deviation = 314.8313
3)
Cities and Cost Traffic
Cities
Seattle-Everett, WA
San Jose, CA
San Francisco-Oakland, CA
San Diego, CA
San Bernardino-River, CA
Sacramento, CA
Portland, OR
Los Angeles, CA
Honolulu, HI
San
Assignment 3, due on April /19/20
A group of 8 students apply for MBA program at CBA, CSULB. According to the historical data, probability
of admittance at MBA program is .65. Using the formula and showing all work and steps, compute the
followings:
1. Pr
IS310 Second Assignment
Refer to the traffic congestion cost table as the primary source of your observations, and do the
followings;
1.
Summarize the cost by calculating the mean
2.
Calculate the Standard deviation
3.
Use a bar graph for this data set. I
Region
City
North Eastern Cities
Baltimore, MD
530
Boston, MA
880
Hartford, CT
250
New York NY
1090
Philadelphia PA
420
Pittsburgh PA
400
Washington DC
1420
Chicago IL
570
Cincinnati OH
200
Cleveland OH
40
Columbus OH
230
Detroit MI
530
Indianapolis IN
13
IS 310 Homework/Project
Find profit or loss of 40 companies.
Calculate the population parameters for all 40 companies
profit or loss
Select a sample of 5
Calculate the point estimators of the sample
Compare the results (Point estimators with Pop. Par