Question 1
10 out of 10 points
>
> If the sample size n is large enough, then which of the following
> statement is true?
>
>
> Selected Answer:
> The sampling distribution will be approximately norma
Computer Assignment #2
IDS 270
Regression Assignment
Pretend you work at an investment firm
Your boss wants to test the investment strategy that if interest
rates go down he will invest heavily in s
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IDS 270 Business Statistics I (31167) 2017 Fall
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Juan Trigueros
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Homework
Review Test Submission: Chapter 1 Blackboard Homework
Review
3 out of 3 points
1.7 (1st part) The shape of the distribution is
Selected
Answer:
Correct
Answer:
Roughly symmetric with a high
side outlier.
Roughly symmetric with a high
side outlier.
Question 2
3
Question 1
10 out of 10 points
5.3 in 1st Edition; 5.3 in 2nd Edition. Telemarketing. The probability that a call will reach a
live person is 0.2. The calls are independent.
(a) A telemarketer places
Ho= Null hypothesis
Ha= Alternative Hypothesis
Alpha- significance level
The probability of rejecting the
null hypothesis AKA the
probability of making a wrong
decision
P Value is the probability of
Lab Assignment 2
Make Your Own Lurking Variable
2
What is A Lurking Variable
The idea of a lurking variable was introduced in the
lecture in Chapter 2
Slide 62 of the lecture notes for chapter 2
A
Practice Exam
1. What is the matter with the graph shown below? What is the name for such a
graph?
Distribution by Income
100
80
60
40
20
0
0 to 75,000
Over 75,000
2. What are the terms for the follow
M 140
Test 1
B
Name_
SHOW YOUR WORK FOR FULL CREDIT!
Problem
1-10
11
12
13
14
15
16
17
18
19
Total
Max. Points
10
3
4
3
10
14
10
7
4
4
60
Your Points
Multiple choice questions (1 point each)
For quest
Chapter 9 Quiz Material
Question 1
QuestionAre avid readers more likely to wear glasses than those who read less frequently
? 300 men in the Korean Army were selected at random and characterized as t
Question 1
2 out of 2 points
2.8 Referring to the graph, is the relationship between body mass and
metabolic rate for females
Selected
Answer:
Correct
Answer:
Positi
ve
Positi
ve
Question 2
3 out of 3
Review Test Submission: Chapter5Quiz
H
Assignments
IDS
270
Business
Statistics
I
(31167)
2014
Fall
12/5/14, 10:29 PM
Quizzes
Review Test Submission: Chapter5Quiz
Review Test Submission: Chapter5Quiz
U
Chapter 9 Homework
Problem 9.9 As A Ch. 8 Prob.
9.9 As a Chapter 9 Problem
Ho: There is no relationship between
gender and label usage
Ha: A relationship does exist
9.9 As a Chapter 9 Problem
9.9 As
Computer Assignment 3
Computer Assignment #3
1.
2.
3.
4.
5.
6.
Pull 50 random samples of size 4 from a population which is N
(10,2). Calculate the mean and standard deviation
Pull 50 random samples of
H
Review Test Submission: Computer Assignment 5 Quiz
Review Test Submission: Computer Assignment 5
Quiz
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
Compu
Chapter 6 HW Problems
6.1
Assume standard deviation of invoice
amount is $200
Sample 100 invoices
What will be standard deviation of xbar?
What does CLT say?
Name sigma, n, mu?
6.2 & 6.3
68-95-9
Name: _ Date: _
Use the following to answer questions 1-5:
Are avid readers more likely to wear glasses than those who read less frequently? 300 men in
the Korean Army were selected at random and char
H
Review Test Submission: Chapter 2 Blackboard Homework
Review Test Submission: Chapter 2 Blackboard Homework
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
Question 1
0 out of 3 points
1.7 (1st part) The shape of the distribution is
Answer
Selected Answer:
Right tailed
Correct Answer:
Roughly symmetric with a high side outlier.
Question 2
3 out of 3 poi
H
Review Test Submission: Chapter 7 Blackboard HW
Review Test Submission: Chapter 7 Blackboard HW
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
Chapter 7 B
H
Review Test Submission: Chapter 9 HW
Review Test Submission: Chapter 9 HW
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
Chapter 9 HW
Started
11/22/13 4:5
Packets of ground filter coffee have a nominal weight of 200g. The distribution of weights may
be assumed to be normal with =10g. A random sample of 30 packets had the following weights.
218 207 214 1
H
Review Test Submission: Computer Assignment 3 Quiz
Review Test Submission: Computer Assignment 3 Quiz
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
Compu
User
Sunny Patel
Submitted
10/15/12 5:44 PM
Name
Computer Assignment 4 Quiz
Status
Completed
Score
100 out of 100 points
Instructions
Question 1
10 out of 10 points
In computer assignment 4, students
H
Review Test Submission: Chapter 4 Blackboard Homework
Review Test Submission: Chapter 4 Blackboard
Homework
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
ben28959_ch01.qxd
8/30/04
3:13 PM
Page 1
Part One
The Regulation
of the Employment
Relationship
1. The Regulation of Employment 2
2. Title VII of the Civil Rights Act of 1964 69
3. Legal Construction
H
Review Test Submission: Chapter 1 Blackboard Homework
Review Test Submission: Chapter 1 Blackboard Homework
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
H
Review Test Submission: Chapter 7 Quiz
Review Test Submission: Chapter 7 Quiz
User
Angel Tafoya
Course
IDS 270 Introduction to Business Statistics(31167) 2013 Fall
Test
Chapter 7 Quiz
Started
11/7/1
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IDS 270 Business Statistics I (29687) 2018 Spring
Marla Ganzorig
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Quizzes
Review Test Submission: Chapter 6 Quiz
Review Test Submiss
UIN _ Do not write your name on the front. Clearly print your name on the
top of the back of the last page where called for. You must show all work for credit.
There are multiple versions of the exam
Question 1
10 out of 10 points
7.5 Apartment rents. Perform hypothesis test for average rent is
greater than $500
Selected Answer:
t=1.18; p-value is between .10 and .15 so do not
reject Ho for
Ha for
A random sample of 22 students weights is drawn from student population.
Investigate whether the average weight of student population is different from 140 lb.
135 119 106 135 180 108 128 160 143 175