The National Retail Federation reported that college freshman spend more on back-toschool items than any other college group (USA Today, August 4, 2006). Sample data
comparing the back-to-school expen
The National Retail Federation reported that college freshman spend more on back-to-school items
than any other college group (USA Today, August 4, 2006). Sample data comparing the back-toschool expen
CHAPTER 3
ART AND SCIENCE OF GRAPHICAL PRESENTATIONS
SECTIONS 1 - 3
MULTIPLE CHOICE QUESTIONS In the following multiple-choice questions, please circle the correct answer. 1. The effect of making the
Chapter 17
17.1
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
A
SUMMARY OUTPUT
B
Regression Statistics
Multiple R
R Square
Adjusted R Square
Standard Error
Observations
C
D
E
F
0.4924
0.2425
0.20
Question 1:
A survey of high school teenagers reported that 89% of those sampled are interested in
3
pursuing a college education. This statement illustrates
Select one:
a. Inferential statistics
b. D
Excel Lesson 2
Overview
Watch the Excel Lesson 2 Video
Using the L2_Titan_OffCampus Excel file, complete the worksheet using the instructions below saving
it as firstName_lastName_L2_Titan_OffCampus.
CHAPTER 6
PROBABILITY
SECTIONS 1
MULTIPLE CHOICE QUESTIONS In the following multiple-choice questions, please circle the correct answer. 1. An approach of assigning probabilities which assumes that al
CHAPTER 2
GRAPHICAL AND TABULAR DESCRIPTIVE TECHNIQUES
SECTIONS 1
MULTIPLE CHOICE QUESTIONS In the following multiple-choice questions, please circle the correct answer. 1. Which of the following stat
A GENTLE INTRODUCTION TO
RANDOM VARIABLES
TO BE READ BEFORE CHAPTER 6
Learning Goals
Inferential statistics
Probability
Random Variable
Probability Distribution
Continuous and Discrete Random Variable
Integrating shape, location and
variability
By integrating the three main features, we can learn not only about the
general global characteristics of the given data, we may also be able to
learn about
SMART Goal Worksheet
Todays Date: _ Target Date: _ Start Date: _
Date Achieved: _
Goal: _
Verify that your goal is SMART
Specific: What exactly will you accomplish?
_
_
_
Measurable: How will you know
WHY SAMPLING DISTRIBUTIONS?
TO BE READ BEFORE CHAPTER 7
Learning Goals
Inferential Statistics
Population Versus Sample
Population Parameters ( and p)
Sample Statistic or Point Estimators ( and )
Sampl
CHAPTER
7, SECTION 7.6
SAMPLING DISTRIBUTION OF
Learning Goals
: random variable with mean and standard deviation
Sampling Distribution of
Normal distribution as the sampling distribution of
Calculat
CHAPTER
7, SECTION 7.5
SAMPLING DISTRIBUTION OF
Learning Goals
X : random variable with mean and standard deviation
: random variable with mean and standard deviation
Sampling Distribution of
Centra
INTERVAL ESTIMATION
TO BE READ BEFORE CHAPTER 8
Learning Goals
Population, Parameter
Sample, Point Estimator
Sampling Distribution
Margin of Error (ME)
Level of Confidence
Interval Estimate
Parameter
Is there a way to summarize shape,
location and spread all at the same time?
Luckily, we have a simple pictorial representation called BOX
PLOT that can nicely summarize the main data features in
one
3) Variability
Why is variability an
important aspect of data?
Suppose you are a purchasing agent for a large manufacturing firm and
that you regularly place orders with two different suppliers.
After
CHAPTER 8: SECTION 2
INTERVAL ESTIMATION
Learning Goals
Interval Estimation of when is unknown
(Section 8.2)
Inference based on small sample
t distribution
Degrees of freedom
Example #1: Average credi
Counseling/Human Services 350
Personal Development Project: Part I
All assignments are to be typed: one-inch margins, double-spaced, 12pt. Times New
Roman font, cover page and reference page if needed
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Variability
Why is variability an
important aspect of data?
Suppose you are a purchasing agent for a large manufacturing firm and
that you regularly place orders with two different suppliers.
After se
(I) Population Normal
Properties: (1) Symmetrical or bell-shaped
(2) Parameters are and
(3) Total area under the curve is 1
(4) Tails are asymptotic to the base
Examples:
1. Suppose the wage of emplo
STUDY GUIDE
EXAM 1
FALL 2016
About Exam 1
Grade: Exam 1 constitutes 20% of your final grade.
Grade Availability: Exam 1 scores will be available on
September 23rd Friday (at 7.15 PM)
Duration of exam:
Formula for finding ME: ME= CV* SE . If interested in U, the point estimator is X. If
interested in p, the point estimator is p
Population proportion = p; Sample proportion = ; ME is a quantification
CHAPTER 6
NORMAL PROBABILITY
MODEL/DISTRIBUTION
Learning Goals
Normal Probability Distribution
Population Mean () and Population Standard Deviation ()
z-scores
Standard Normal Probability Distribution
CHAPTER 8: SECTIONS 3 AND
PART OF 4
INTERVAL ESTIMATION
Learning Goals
Sample Size (n) determination in
Interval Estimation of when is known
(Section 8.3)
Sample Size (n) determination in
Interval Est
CHAPTER 8: SECTIONS 1 AND 4
INTERVAL ESTIMATION
Learning Goals
Interval Estimation of when is known
(Section 8.1)
Interval Estimation of p
(Section 8.4)
Interval Estimation of when is known
Example #1
WHY SAMPLING DISTRIBUTIONS?
TO BE READ BEFORE CHAPTER 7
Learning Goals
Inferential Statistics
Population Versus Sample
Population Parameters ( and p)
Sample Statistic or Point Estimators ( and )
Sampl
After deducting grants based on need, the average cost to
attend the University of Southern California (USC) is $27,175.
Assume the population standard deviation is $7400. Suppose
that a random sample
Margin of error the
value added to and subtracted from a point
estimate in order to develop an interval estimate of a population
parameter.
Null hypothesis hypothesis tentatively assumed true in the
(random) sample a (random) subset chosen from the population.
Business Analytics the scientific process of transforming data into insights for making better business decisions.
Cross-sectional data- c
ISDS 361A EXAM #3
Chapter 10
Independent Simple Random Samples: samples selected from two populations in such a way
that the elements making up one sample are chosen independently of the elements maki
SI Final Exam Review
1. What is Business Analytics and what class does it correlate with?
The usage of statistics for business and economic decision making. The scientific process
of transforming data