The mean of a group of numbers is the average of all the numbers given. The
mean for my data would be 38 + 91 + 96 + 41 + 53 + 64 + 91 + 105 + 17 + 94 = 690
690 / 10 = 69, which would make the mean 69. The median for this set of data would
read as such, 1
This Basic Statistics course has been one of the greatest challenges of
my academic career. Although I deal with math daily in my personal life and in
my career, I have never studied or understood basic statistics and what is
entailed to compute a statist
A frequency distribution table is a table that is used to present statistical data by
putting together, in a table format, values of a characteristic along with the number of
times each value appears in the data set. In order to create a frequency distrib
Unit 1
Objectives and Homework
(1.1)
1.
2.
3.
4.
5.
Define statistics and statistical thinking (p. 3)
Explain the process of statistics (p. 4)
Distinguish between qualitative and quantitative variables (p. 6)
Distinguish between discrete and continuous va
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UNIT 3 DRILL
UNIT 3 DRILL
Indicate whether the statement is True or False. Justify your answer with a reasonable
statement.
1. Decreasing the sample size increases the margin of error.
a. True
b. False
2. Decreasing the confidence level increases the marg
Binomial and Normal Probabilities
DRILL
Name:_
1. The managers of a corporation were surveyed to determine the background that leads to a
successful manager. Each manager was rated as being either a good, fair, or poor manager by
his/her boss. The manager
CUMULATIVE DRILL
Cumulative Problems
1. According to the creditcard.com website, 29% of adults do not own a credit card. Suppose a
random sample of 100 adults are asked, Do you own a credit card?
a. Describe the sampling distribution of ^p , the proportio
Part 1
1.
a. There appears to be a moderate to strong, positive linear relation between the drop pressure
and flow rate.
b. yi=1x1 + 0
y= 0.09439x 0.112
1= the slope, the residual multiplied by the standard deviation of flow rate divided by the
standard d
MAT-220-W01 Blackboard Assignment Solution (2014FA)
Section 15.5 - Inferences about the Difference between Two Medians with Independent
Samples: Applying the Concepts
Exercise 15.5.14
Step 1:
vs.
where
is the median amount of potassium (mg/L) in rainwater
1.
a.) There are two factors, Amount of Antimony and Cooling Method, that have four levels for
antimony (0, 3, 5, 10) and four levels for cooling method (WQ, OQ, AB, FC). There are four treatments
antimony levels 0, 3, 5, 10. There are three replications
MAT-220-W01 Blackboard Assignment Solution (2014FA)
Section 15.4 - Inferences about the Difference between Two Medians with Dependent Samples:
Applying the Concepts
Exercise 15.4.14
Step 1:
vs.
where
is the median of the differences and
.
Step 2:
As state
MAT-220-W01 Blackboard Assignment Solution (2014FA)
Section 15.3 - Inferences about Measures of Central Tendency: Applying the Concepts
Exercise 15.3.12
Step 1:
vs.
where
is the median number of miles on 3-year-old Chevrolet Impalas in the St. Louis, Miss
MAT-220-W01 Blackboard Assignment Solution (2014FA)
Section 9.5 Estimating with Bootstrapping: Applying the Concepts
Exercise 9.5.8
a. From the boxplot(s) of the data, we see that the distribution of the observed salaries is skewed right
and two potential
Name: _SOLUTION_
MAT 220 Advanced Statistics
Test 4 (In Class)
Fall 2014
Instructions
Write your answers directly on this assessment, in the appropriate space provided with each
question. Should additional space be needed, use the blank page(s) appended a
Name: _
MAT 220 Advanced Statistics
Test 5 (Take Home)
Fall 2014
Due Date
This test is due at 11:59 PM, on Thursday, December 4. Late submissions will incur a 10% per day
penalty.
Academic Integrity
By signing below, you acknowledge that all solutions (wo
Name: _
MAT 220 Advanced Statistics
Test 4 (Take Home)
Fall 2014
Due Date
This test is due at 11:59 PM, on Wednesday, November 12. Late submissions will incur a 10% per day
penalty.
Academic Integrity
By signing below, you acknowledge that all solutions (
Name: _SOLUTION_
MAT 220 Advanced Statistics
Test 3 (Take Home)
Fall 2014
Due Date
This test is due at 11:59 PM, on Wed., October 22. Late submissions will incur a 10% per day penalty.
Academic Integrity
By signing below, you acknowledge that all solution
Name: _SOLUTION_
MAT 220 Advanced Statistics
Test 2 (In Class)
Fall 2014
Instructions
Write your answers directly on this assessment, in the appropriate space provided with each
question. Should additional space be needed, use the blank page(s) appended a
Name: _
MAT 220 Advanced Statistics
Test 2 (Take Home)
Fall 2014
Due Date
This test is due at 11:59 PM, on Wed., October 1. Late submissions will incur a 10% per day penalty.
Academic Integrity
By signing below, you acknowledge that all solutions (work) i
Name: _SOLUTION_
MAT 220 Advanced Statistics
Test 1 (Take Home)
Fall 2014
Due Date
This test is due at 11:59 PM, on Sunday, September 14. Late submissions will incur a 10% per day
penalty and will not be accepted after Wednesday, September 17.
Academic In
MAT 220 Advanced Statistics
Final Exam Review
Fall 2014
Outline/Instructions
The final exam is scheduled for Wednesday, December 10 or Thursday, December 11, 2014 in the
Distance Education Testing Center. Should you have conflict with either of those days
Name: _
MAT 220 Advanced Statistics
Extra Credit Project 1
Fall 2014
Due Date
This test is due at 11:59 PM, on Sun., December 7. Late submissions will incur a 10% per day penalty.
Academic Integrity
By signing below, you acknowledge that all solutions (wo
15.5.14- By-Hand Approach
Step 1
Step 2
H0: MLC=MCC
H1:MLCMCC
Step 3
S=504.5
T=504.5-22(22+1)/2=251.5
2220 ( 22+20+21 )
( 12)
Z0=(251.5-(22*20)/2)/
Z0=.7933
= .05 Z /2=1.96
Z0=.7933< Z /2=1.96
Step 4
Because Z0=.7933 is less than Z /2=1.96 we do not reje
15.4.14
Step 1.
Step 2.
Step 3.
Step 4.
H0: MD=0
H1: MD>0
Level of significance is =0.05
Because the P-Value is less than the level of significance we reject the null.
Step 5.
There is sufficient evidence to conclude that the median hemoglobin conclude up