COURSE: DSCI 3710
Exam 1 version A
Fall 2009
Print Name:
Signature: *Key*
Student ID#:
INSTRUCTIONS:
Please print your name and student ID number on this exam. Also, put your
signature on this exam.
On your scantron PRINT your name and exam version.
You h
DSCI 2710 Lecture 8
UNTBSTAT Lesson 6.5
Binomial Distribution
Slide Material from:
Nottingham & Hawkes,
Discovering Business Statistics
HAWKES LEARNING SYSTEMS
Copyright 2013 by Hawkes Learning
Students Matter. Success Counts.
Systems/Quant Systems, Inc.
Chapter 1 terms
Statistics
The science comprising rules and procedures for collecting, describing, analyzing, and interpreting
numerical data
Excel
A spreadsheet program that can be used to access, process, analyze, display, and share information for
runn
Chapter 3 terms
Descriptive Measures
A statistic that describes the location, variation, or shape of a sample or one that describes the position
of an individual value in a sample (such as percentile)
Measures of Central Tendency
Measures that describe th
Ch 2 terms
Frequency DIstribution
A data summary consisting of classes, frequencies, and/or relative frequencies
Open-Ended Class
A class that is open on one end, such as "less than 10" or "greater than or equal to 80"
Class Width equation
range/number of
Chp 3 Post Test
In exercise 3.24, what is the 40th percentile?
3.75
In exercise 3.6, part c, what is the sample mean?
631.5
What is the answer for exercise 3.34, part b?
Between 5 and 35
In exercise 3.18, what is the coefficient of variation?
9.44%
In exe
Chapter 6 post test
In exercise 6.2, what is P(X > 4)?
.371
In exercise 6.9, part e, is this a valid PMF?
No, since the probabilities do not sum to 1
In exercise 6.36, part a, what is the standard deviation?
1.90
In exercise 6.9, part d, is this a valid P
Chapter 4 post test
n exercise 4.36, what is the deseasonalized value for time period t=3?
17.71
In exercise 4.64, the Laspeyres Index is?
125.49
In exercise 4.7, the value of B= tyt is?
5010
In exercise 4.50, the cyclic component for February 2006 is?
1.
DSCI final
Lesson 3.1 Measures of center
Calculate the GPA of a student with the following grades: A (13hours), C (21hours), D (17hours). Note that an A is
equivalent to 4.0, a B is equivalent to a 3.0, a C is equivalent to a 2.0, a D is equivalent to a 1
User
Course
Cassandra Romero
DSCI 2710 Data Analysis with Spreadsheets - Section 002
(Spring 2017 1)
Test
Post-Test Chapter 9
Started
4/24/17 10:01 PM
Submitted
4/24/17 10:01 PM
Status
Completed
Attempt Score 9 out of 10 points
Time Elapsed 32 minutes out
Question 1
1 out of 1 points
In exercise 8.2, part d, what is the probability that the sample mean is
between 188 and 198?
Selected
Answer:
.
336
4
Question 2
1 out of 1 points
In exercise 8.16, part a, the lower limit of the 99% confidence interval
usin
Question 1
1 out of 1 points
In exercise 4.24, the intercept of the trend line (b0) is
Selected
Answer:
1.61
0
Question 2
0 out of 1 points
In exercise 4.30, what is the estimated sales value for time period t = 13?
Selected
Answer:
13.5
63
Question 3
0
Question 1
1 out of 1 points
In exercise 3.16, what is the coefficient of variation for Stock A?
Selected
Answer:
21.84
%
Question 2
1 out of 1 points
In exercise 3.8, what is the median?
Selected
Answer:
69,3
90
Question 3
1 out of 1 points
In exercise
Question 1
1 out of 1 points
In exercise 7.22, part b, what is the probability than the cost of a room is
between $110 and $150?
Selected
Answer:
.
682
6
Question 2
1 out of 1 points
In exercise 7.6, part c, what is the value of z?
Selected
Answer:
1.2
2
Question 1
0 out of 1 points
In exercise 2.10, what is the relative frequency of the 2nd class?
Selected
Answer:
.
21
4
Question 2
1 out of 1 points
In exercise 2.20, what is the shape of the histogram?
Selected
Answer:
Heavy on the left with a
right tai
Question 1
1 out of 1 points
In exercise 1.25, part b, this group would be
Selected
Answer:
A sample of students since it was obtained from the
group of all students
Question 2
1 out of 1 points
In exercise 1.2, what differentiates ratio data from data t
DSCI 3870: Management Science
Exam # 3
Version A
Date: 12/15/2016
Time: 100 min. (1:30 p.m. 3:10 p.m.)
Name:
Student ID #:
Please read this carefully
This exam consists of 30 (T/F and multiple-choice) questions.
Please answer on the scantron sheet provide
DSCI 3870: Management Science
Exam # 3 Version A
Date: 05/12/2016
Time: 90 minutes (1:30 3.00 pm.)
Name:
Student ID #:
Please read this carefully
This exam consists of 28 (T/F and multiple-choice) questions.
Please answer on the scantron sheet provided. I
HLS PRACTICE QUIZ ANSWERS:
1.
H0: p 0.54
Ha: p > 0.54
1.99
One-Tailed Test
Reject H0 if z > 2.05
Fail to Reject Null Hypothesis
There is not sufficient evidence to support the claim that the percentage of readers who own a
particular make of car is above
DSCI 3870.001: Management Science
Exam # 1
VERSION: A
02/16/2016
Time allotted: 75 minutes
Name:
SID#:
Please read this carefully
The questions, which you attempt today, consist of True/False and multiple-choice questions worth 200
points total. Some of t
1A university librarian at a university with a large multinational student body is interested in the
proportion of students who would like the library search functions available in a language other
than English. If over half of the student population favo
DSCI 3710 Hypothesis Testing Notes1
Road Map to Hypotheses Testing of the Means
Hypothesis Testing Across the Course
Case 1: Unknown population mean with Known
Case 2: Unknown population mean with Unknown
Case 3: Two unknown population means 1 and 2, Kn
Country Region
Brunei
Indonesia
Korea, Dem
Myanmar
Singapore
Vietnam
Afghanista
Bhutan
India
Thailand
Denmark
Estonia
France
Germany
Iceland
Ireland
Italy
Liechtenste
Luxembour
Portugal
Switzerlan
Turkey
Belarus
Latvia
Macedonia
Moldova
Poland
Russia
Slov
KVANLI
PAVUR
KEELING
Chapter 8
Statistical
Inference and
Sampling
Chapter Objectives
At the completion of this chapter, you should be
able to:
Define and distinguish between sample
statistics and population parameters
Discuss the Central Limit Theorem
Karnatik music
(Karna+ataka Sangeetha)
A concert by
Vocal Abhishek Raghuram
Violin Vittal Ramamurthy
Mridanga Neyveli Narayanan
https:/www.youtube.com/watch?v=MR3d8vNEr1s
Fundaments
Svara A musical note.
Seven notes of Indian music are
SA RI GA MA PA DHA
Writing and Balancing
Chemical Equations
A chemical equation uses formulas to express the identities and
quantities of substances involved in a physical or chemical change.
Figure 3.5
The formation of HF gas on the macroscopic and molecular levels.
3-1
Fe
Stats on the TI 83 and TI 84 Calculator
Entering the sample values
STAT button
Left bracket cfw_
Right bracket
Store (STO)
List L1
Comma
Enter
Example: Sample data are cfw_5, 10, 15, 20
1. Press 2ND and Left bracket button.
2. Enter 5, press the comma bu
Chapter 2
Computers
C
t
in
i G
Government,
t Law
L
Enforcement, and the Military
LAK 9-Sept-10
Introduction
Computers and the Government
Electoral process,
process postal services
services, census
census, and
taxes
Computers
p
in Law Enforcement
Evide