Help needed to complete this assignement. Needs to be done with own answers and not copied from others work.
This course will be utilizing the Post-First feature. You will not be able to see your classmates’ posts until after you have made your own post. This is intentional. You must use your own work for answers to questions 1–5. If something happens that leads you to want to make a 2nd post for any of your answers to questions 1–5, you must get permission from your instructor.
a)
Create a set of 5 points that are very close together and record the standard deviation. Next, add a 6th point that is far away from the original 5 and record the new standard deviation.
What is the impact of the new point on the standard deviation? Do not just give a numerical value for the change. Explain what happened to the standard deviation in words.
(4 points)
b)
Create a data set with 8 points in it that has a mean of approximately 10 and a standard deviation of approximately 1. Use the 2nd chart to create a second data set with 8 points that has a mean of approximately 10 and a standard deviation of approximately 4.
What did you do differently to create the data set with the larger standard deviation?
(4 points)
Put values matching the following data set into the data column.
(8 points)
50, 50, 50, 50, 50.
Notice that the standard deviation is 0. Explain why the standard deviation for this one is zero. Do not show the calculation. Explain in words why the standard deviation is zero when all of the points are the same. If you don’t know why, try doing the calculation by hand to see what is happening. If that does not make it clear, try doing a little research on standard deviation and see what it is measuring and then look again at the data set for this question.
Put values matching the following data sets into the data columns. Record what the standard deviation is for each data set and answer the questions below.
Data set 1:
0, 25, 50, 75, 100
Data set 2:
30, 40, 50, 60, 70
Data set 3:
40, 45, 50, 55, 60
Note that all three data sets have a median of 50. Notice how spread out the points are in each data set and compare this to the standard deviations for the data sets. Describe the relationship you see between the amount of spread and the size of the standard deviation and explain why this connection exists. Do not give your calculations in your answer — explain in words.
(8 points)
For the last 2 questions, use the Project 1 Data set that is found in
Course Content >> Syllabus and Assignment Instructions >> Assignment Instructions in Blackboard.
4.
Explain what an outlier is. Then, if there are any outliers in the Project 1 Data Set, what are they? If there are no outliers, say no outliers.
(4 points)
5.
Which 4 temperatures in the data set look to be the most questionable or the most unrealistic to you? Explain why you selected these 4 points.
(4 points)
.
Help needed to complete this assignement. Needs to be done with own .docx
1. Help needed to complete this assignement. Needs to be done
with own answers and not copied from others work.
This course will be utilizing the Post-First feature. You will not
be able to see your classmates’ posts until after you have made
your own post. This is intentional. You must use your own work
for answers to questions 1–5. If something happens that leads
you to want to make a 2nd post for any of your answers to
questions 1–5, you must get permission from your instructor.
a)
Create a set of 5 points that are very close together and record
the standard deviation. Next, add a 6th point that is far away
from the original 5 and record the new standard deviation.
What is the impact of the new point on the standard deviation?
Do not just give a numerical value for the change. Explain what
happened to the standard deviation in words.
(4 points)
b)
Create a data set with 8 points in it that has a mean of
approximately 10 and a standard deviation of approximately 1.
Use the 2nd chart to create a second data set with 8 points that
has a mean of approximately 10 and a standard deviation of
approximately 4.
What did you do differently to create the data set with the larger
standard deviation?
(4 points)
Put values matching the following data set into the data column.
(8 points)
50, 50, 50, 50, 50.
Notice that the standard deviation is 0. Explain why the
2. standard deviation for this one is zero. Do not show the
calculation. Explain in words why the standard deviation is zero
when all of the points are the same. If you don’t know why, try
doing the calculation by hand to see what is happening. If that
does not make it clear, try doing a little research on standard
deviation and see what it is measuring and then look again at
the data set for this question.
Put values matching the following data sets into the data
columns. Record what the standard deviation is for each data set
and answer the questions below.
Data set 1:
0, 25, 50, 75, 100
Data set 2:
30, 40, 50, 60, 70
Data set 3:
40, 45, 50, 55, 60
Note that all three data sets have a median of 50. Notice how
spread out the points are in each data set and compare this to
the standard deviations for the data sets. Describe the
relationship you see between the amount of spread and the size
of the standard deviation and explain why this connection
exists. Do not give your calculations in your answer — explain
in words.
(8 points)
For the last 2 questions, use the Project 1 Data set that is found
in
Course Content >> Syllabus and Assignment Instructions >>
3. Assignment Instructions in Blackboard.
4.
Explain what an outlier is. Then, if there are any outliers in the
Project 1 Data Set, what are they? If there are no outliers, say
no outliers.
(4 points)
5.
Which 4 temperatures in the data set look to be the most
questionable or the most unrealistic to you? Explain why you
selected these 4 points.
(4 points)
