Terry Hashley
MA3110: Statistics
4/3/2016
Module 3 Exercise 1
A simple random sample of 40 salaries of NCAA football coaches has a mean of $415,953 and a standard
deviation of $463,364. Construct a 95
Problem 1
Difference
Wins
163
0.599
55
0.537
-5
0.531
88
0.481
51
0.494
16
0.506
-214
0.383
I have to make images of the
plots so you can see them in
the homework for some reason.
That's why it's an i
MA3110: Statistics
Module 2 Exercise 2.2
Task 1
CBS
Fox
ABC
Total
9
6
5
20
Terry Hashley
3/24/2016
I feel the pie chart is the most representative of the
data as it gives an overall representation of
Task 1 - Part 1: 1. The sample size is not independent as the same population is being
sampled. 2. We need to use normally distributed populations with simple random samples
which is not what is used
Task 1
A
1
3
5
3
2
4
Source
Treatment
Error
Total
B
0
6
2
5
2
3
2.449
6
df
2
9
11
C
3
12
6
3
By hand
.05 Level of Significance
4
Sample Mean
6
Mean
4.243
Standard Deviation
18
Variance
110 Total Sum o
Party
F
R
R
F
U
D
DR
R
D
DR
R
R
DR
R
D
DR
R
D
D
D
R
D
R
R
W
D
D
W
R
R
D
R
R
W
R
D
W
D
R
D
R
D
What is the population under consideration? The first 44 US presidents
What are the two variables under co
The requirements for using this method :
1. The samples should be 2 simple random samples
2. The number of successes and the number of failures should be at least 5 for all parts.
1. The claim is that
Someone wants to estimate the mean age for college students. A random sample of 49 students indicates that the mean a
Since the population standard deviation is known, you can use the z score.
First,
Statistics 3110
Exercise 1
A simple random sample of 40 salaries of NCAA football coaches has a mean of $415,953 and a standard
deviation of $463,364. Construct a 95% confidence interval estimate of t
MA3110: Statistics
Module 1 Exercise
Terry Hashley
3/15/2016
Task 1: Exercise 1.1
Question 1.1
Define the following terms:
Population
o The group of objects (whether it be people, items or otherwise)
MA3110: Statistics
Module 2 Exercise 2.1
Terry Hashley
3/24/2016
Determine whether or not the data represent a probability distribution:
If the data represent a probability distribution, find its mean
Oscar Madriz
MA 3110
Exercise 2-2
TV Networks
10
9
8
7
6
CBS
FOX
ABC
5
4
3
2
1
0
TV Networks
25%
45%
30%
CBS
FOX
ABC
Each chart is an appropriate choice. I would decide on how it needs to be presented
The amount of money spent on various items in a persons monthly budget
I believe that pie chart would make a great visual representation for displaying
ones monthly budget. The total allowed to spend
Shawn Montgomery
MA3110: Module 6 Exercise 1
August 21, 2016
Task 1:
The computed correlation coefficient between these two variables is 0.8717 and the
critical value from the table is 0.754.
As the c
Shawn Montgomery
MA3110: Exercise 5.2
August 15, 2016
What is the population under consideration?
The Presidents of the United States
What are the two variables under consideration?
The two variables
MA3110: Module 2 Probability and Normal Distribution
Andrew Lewis 08/14/16
CBS
ABC
9
Fox
5
6
Number of Occurances
Fox
ABC
CBS
0
1
2
3
4
5
6
7
Percentage of Occurances
Fox ; 30%
CBS ; 45%
ABC; 25%
CBS
Task 1
The Graph I believe that better represents the data is the bar graph.
I say this because there isnt really a reason to use a pie chart, its not part of a whole (that I know of). Its
just data.
Shawn Montgomery
MA3110: Exercise 4.2
1.
P=the proportionof peopleaged 1825 who currently use illicit drugs
P=.20
The null hypothesis H 0alternative hypothesis H 1 symbolic form are :
H 0 : p=0.20H 1
Shawn Montgomery
MA3110: Module 4 Exercise 1
July 21, 2016
Exercise 4.1 Interferences from Two Proportions and Samples
Task 1
A student of the author surveyed her friends and found that among 20 males
Shawn Montgomery
MA3110: Module 3 Exercise 2
July 17, 2016
Part A
Students
Bag
1
Bag 2
Bag 3
Bag 4
Bag 5
Sum
of
variable
s
Number
of
variable
s
Sampl
e
Mean
Standard
5
6.8
4.32435
Deviatio
n
Student 1
Assignment 1 - 12.14.14
MA3110 Statistics
Central Tendency and Measures of Variation
TASK 1:
1.1 Define:
1.
Population - the specified extent or degree to which an area is or has been populated
[SOURC
Frequency Distribution of Qualtivite Data
Democtatic -D
Republican - R
Other - O
D
D
D
D
O
R
O
R
O
R
Party
Democratic
Republican
Other
O
R
O
D
D
R
D
D
D
R
R
O
R
D
R
Tally
13
18
9
Frequency
13
18
9
40
STATE
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecitcut
Delaware
Dc
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky
Louisiana
Maine
Maryland
Massachusetts
Michigan
Min