1. Question :
How many permutations of the three letters C, D, and E are
possible?
Student
Answer:
3
0
6
9
Instructor
Explanation:
Using the permutation formula 3!/0! = (3)(2)(1) = 6.
Points Received:
1. Question :
For any distribution, there are an equal number of values above
and below the mean.
Student
Answer:
True
False
Instructor
There are an equal number of observations above
Explanation and
Problem 1 (Weight 40 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 sam
Purpose Statement
Correlation is a statistical measurement of the relationship between two variables. Possible
correlations range from +1 to 1 (Cherry, 2016). A zero correlation indicates that there i
xxxxxx
Unit 3 HW
8 Nov 15
Unit 3 HW Pg. 283-84 Questions 33, 42, and 50
33.) a.) 99% confidence interval
68.6 2.580 (8.2/50) = 68.6 3.108
b.) The interval does include the value suggested by the NCAA,
xxxxx
Unit 4 HW
15 Nov 15
Unit 4 HW: Pg 318-319, 321 Questions 34, 38, and 61
34.) H0:40; H1:<40
t=
xbar
s
n
Reject H0 if t< -2.662
= 37.8-40/(12.2/60) = -1.397
Since -1.397 is greater than the criti
xxxxx
Unit 7 Homework
6 Dec 15
Unit 7 HW: Ch 11 pg 351-352, Questions 24, 34, 37, and 38
24.) H0: d n H1: d > n
d=21 n=28 nd=54 nn=60 Xbard=345 Xbarn=351 a=.05
Reject H0 if computed z > critical z. Cr
Chapter 3 Notes: Describing Data: Numerical Measures
2 Numerical Ways of describing numerical data: Measures of Location and measures of dispersion
Measures of Location: often referred to as averages.
Purpose Statement
In one paragraph, state the correlation and identify the primary independent variables.
Before proceeding to the development of formulas, it is may be well to define a few terms that
Page 92-93
64. The Kentucky Derby is held the first Saturday in May at Churchill Downs in Louisville,
Kentucky. The race track is one and one quarter miles. The following table shows the winners
since
Surname 1
Volleyball
In this report, we are interested in determining if there is any relationship between the
dependent variable Kills and the independent variables: Errors, Total Attacks, Assists, A
EC315: Week 5 - Homework
40. A suburban hotel derives its gross income from its hotel and restraint
operations. The owners are interested in the relationship between the number
of rooms occupied on a
What is a type I and type II errors in hypothesis testing? What would be examples of each? Explain.
A hypothesis is a statement yet to be tested. Type I error refers to wrongly rejecting a hypothesis
Chapter 12
Questions 22
Jacob Lee is a frequent traveler between Los Aneles and San Francisco. For the past month, he wrote
down the flight times on three different airlines. The results are:
Goust
Je
EC/315 Midterm Examination
PROBLEM 1 (Weight 40 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 reg
1 Securities Exchange Commission (source: BYP4-5 of Kimmel textbook)
What event spurred the creation of the SEC? Why was the SEC created?
The Security and Exchange Commission (SEC) is a U.S. governmen
1. Question :
What is the chart called when the paired data (the dependent and
independent variables) are plotted?
Student
Answer:
A scatter diagram
A bar chart
A pie chart
A histogram
Instructor
Expl
1. Question :
A random sample of size 15 is selected from a normal population.
The population standard deviation is unknown. Assume the null
hypothesis indicates a two-tailed test and the researcher d
Read the Article:
Your Essay:
1. In 2 paragraph(s) analyze data collection, analysis, and conclusion. Do you agree, disagree with
the approach? Could there other variables to analyze? What might you d
1. Question :
The results of a mathematics placement exam at two
different campuses of Mercy College follow:
Student
Answer:
9.30
2.60
3.37
3.75
Instructor
Explanation:
Because we know the population
Calvin Knights Women's Volleyball Dataset
Primary Independ Independ Independ
Test Data Depende
Independ ent
nt
ent
ent
ent
1
2
3
4
Date
11/8/2014
11/7/2014
10/31/2014
10/28/2014
Kills
Total Attacks Bl
Vietnam
1
Final Term Paper
EC 309
Vietnam
Politics
Vietnam
2
Upon the birth of the Democratic Republic of Vietnam the country became a socialist
republic which is a law-governed state. Vietnams politi