Unit 2: Week 2 - Week 2 Homework
Week Two:
Complete the following questions from the end of the chapter.
Chapter 6
page 187, #36
page 187, #39
Chapter 7
page 215, #32, 37
Homework needs to be submitted in the dropbox for Week 2 Homework prior to midnight
WEEK 2 HOMEWORK
E6-36. The payout for Powerball lottery and their corresponding odds and probabilities are shown below. The
price of a ticket is $1.00. Find the mean and standard deviation of the payout.
Divisions
Five Plus Powerball
Match 5
Four Plus Pow
Unit 5: Week 5 - Week 5 Homework
Week Five:
Complete the following questions from the end of the chapter.
Chapter 13
page 423, #40
page 424, #44
page 425, #47
Homework needs to be submitted in the dropbox for Week 5 Homework prior to midnight (CST -Parkvi
Chapter 6 Page 190, Questions 36 and 39
36. The payouts for the Powerball lottery and their corresponding odds and probabilities of
occurrence are shown below. The price of a ticket is $1.00. Find the mean and standard deviation of
the payout. Hint: Dont
Wages and Wage Earners
Wages and Wage Earners:
EC 315
Insert Name
Term Project Report
Fall 1 2010
1
Wages and Wage Earners
TABLE OF CONTENTS
DICUSSION OF RESULTS
3
SUMMARY
11
REFERENCES
12
APPENDIX
13
2
Wages and Wage Earners
3
Wages and Wage Earners:
Dis
Week 4- Midterm Exam
EC 315 Quantitative Research Methods
PROBLEM 1 (Weight 20 points).
NBC TV news, in a segment on the price of gasoline, reported last evening that the mean
price nationwide is $1.50 per gallon for self-serve regular unleaded. A random
PART I. HYPOTHESIS TESTING
PROBLEM 1 A certain brand of fluorescent light tube was advertised as having an effective
life span before burning out of 4000 hours. A random sample of 84 bulbs was burned out
with a mean illumination life span of 1870 hours an
WEEK 1 HOMEWORK - CH3
P3-65. U.S. housing prices reached their peak in July of 2006. The following data shows the ratio of the
prices reported in a recent month to the July 2006 figure. These are to be used to represent typical
amounts of decline from tha
WEEK 6 HOMEWORK
12-22. A physician who specializes in weight control has three different diets she recommends. As an
experiment, she randomly selected 15 patients and then assigned 5 to each diet. After three weeks the
following weight losses, in pounds,
Discussion (WK2)
Question 1:
Give an example representing a discrete probability distribution and a continuous probility distribution.
Explain why your choice is discrete and continuous.
Discrete probability distribution:
Example: If X denotes the number
Quiz (WK2)
1. The shape of any uniform probability distribution is (Points : 1)
Negatively skewed
Positively skewed
Rectangular
Bell shaped
2. The upper and lower limits of a uniform probability distribution are (Points : 1)
positive and negative infinity
WEEK 3 HOMEWORK
9-37.
The National Collegiate Athletic Association (NCAA) reported that the mean number of hours spent per
week on coaching and recruiting by college football assistant coaches during the season is 70. A random
sample of 50 assistant coach
Quiz (WK3)
All possible samples of size n are selected from a population and the mean of
each sample is determined. What is the mean of the sample means? (Points : 1)
1.
Exactly the same as the population mean
Larger than the population mean
Smaller than
Quiz (WK6)
1.
Analysis of variance is used to (Points : 1)
compare nominal data.
compute t test.
compare population proportion.
Simultaneously compare several population means.
Suppose a package delivery company purchased 14 trucks at the same time. Five
Discussion (WK7)
Question 1:
When a researcher has two samples with two means, one of the assumptions for two samples is
independence of between the two samples. What does this mean? What happens if the independence
assumption is violated?
When a research
Quiz (WK2)
1. Which of the following is NOT true regarding the normal distribution? (Points : 1)
Mean, median and mode are all equal
It has a single peak
It is symmetrical
The points of the curve meet the X-axis at z =
3 and z = 3
2. For a standard normal
Discussion (WK6)
Question 1:
The F test is used in Analysis of Variance (ANOVA). When would a researcher use an ANOVA? Explain.
ANOVA Means Analysis of Variance. It is used to analyze total variability of a set of data. It segregates the variability
into
1. From past records it is known that the average life of a battery used in a digital clock is 305 days. The
battery life is normally distributed. The battery was recently modified to last longer. A sample of 20 of the
modified batteries was tested. It wa
Discussion (WK3)
Question 1:
As a sample size approaches infinity, how does the students t distribution compare to the
normal z distribution? When a researcher draws a sample from a normal distribution, what can
one conclude about the sample distribution?
WEEK 4 HOMEWORK
10-34. A recent article in vitality magazine reported that the mean amount of leisure time per week for
American men is 40.0 hours. You believe this figure is too large and decide to conduct your own test. In
a random sample of 60 men, you
STEPHENIE REYNARD
QUANTITIVE RESEARSCH METHODS
HOMEWORK WEEK 2
19 JUN 16
Ch 6
36. The payouts for the Powerball lottery and their corresponding odds and probabilities of
occurrence are shown below. The price of a ticket is $1.00. Find the mean and standar
Question 1
1 / 1 pts
To study the population of consumer perceptions of new technology, sampling of the
population is preferred over surveying the population because _.
Sampling is more accurate
We can compute z-scores
It is quicker
Sampling methods are s
EC315
MODULE 4
P:318-319
Q: 34, 38, 61
34)
N Hyp: 40
A Hyp: < 40
T value = 1.671
Test stat = -1.397
We can not reject the nullso no evidence leisure time is less than 40.
38)
N Hyp: 25
A Hyp: > 25
X bar: 26.067
s: 1.5337
t: 2.694
Must reject if z > 2.624
EC315
P:283-284 Q:33, 42, 50
33)
a) 65.492 71.708
b) 70 falls within the range, so yes, it is reasonable
c) if the interval is changed to 95% the t-value decreases to 2.009, so the confidence
interval will become smaller
42)
yes, it is reasonable (but jus
1
Quantitative Research Methods Term Paper
Associated Factors Impact on Grade Point Average
EC315 2016
Professor Scott Sowder
INTRODUCTION
2
Purpose: The purpose of this project is to determine the impact of number of classes
taken, age, IQ, and study tim
EC/315 Midterm Examination
Name:
Directions:
This test is open-book and open notes and covers the content from weeks 1 through week 4
of EC/315. The test will be typed and submitted in the Dropbox marked Midterm
Exam. The midterm is due the last day of We