22 May The whole purpose of statistical testing is to better understand the population. In this workshop, you will learn how to develop confidence limits
The whole purpose of statistical testing is to better understand the population. In this workshop, you will learn how to develop confidence limits. These confidence limits will give you the range within which the true value of your variable lies in the population. The higher the desired confidence (i.e. lower the chance of being wrong), the broader the range. The lower the desired confidence level, the more narrow the range.
Upon successful completion of this assignment, you will be able to:
- Develop confidence limits from actual data.
Instructions
- Review the rubric to make sure you understand the criteria for earning your grade.
- Read chapters V, and IX, and X in the online textbook. Watch the videos and powerpoints that go with each chapter.
- Examine the County Complete database. Pick three states in the same area of the country as yours, one of which is your home state. Determine one variable that was not included in your workshop two analysis. Complete the following analysis:
- Determine the mean, median, mode, standard deviation, and variance for the counties in all three states. How are they different? The same?
- Assess each of your three variables for normality.
- Determine a 95% confidence level for each of the three states for the mean value of counties.
- Compare the confidence level of your home state to the actual value for your home county. Is it within the confidence limit you have calculated? If not, what could be factors causing it to be an outlier?
- Write a short report that includes the results of your analysis. Include whatever graphs or statistical output you may have generated in answering these questions along with a short explanation of your analysis.
- When you have completed your assignment, submit a copy to your instructor using the Assignment submission page.
- The assignment is due by the end of the workshop.
5/21/22, 7:25 PM Preview Rubric: 3.2 Assignment: Confidence Limits (75 points) – 3SU2022 Data Analytics & Research (BADM-707-01B) – Indiana Wesleyan U…
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3.2 Assignment: Confidence Limits (75 points) Course: 3SU2022 Data Analytics & Research (BADM-707-01B)
Criteria Excellent Competent Needs Improvement
Inadequate/Faili ng
Criterion Score
Comparison of
three states
/ 20
Statistical
tools
/ 20
20 points
Demonstrated
clear, insightful
critical thinking
in discussing
the similarities
and
differences
between the
three states.
19 points
(16-19 points)
Demonstrated
competent
critical thinking
in discussing
the similarities
and
differences
between the
three states
15 points
(12-15 points)
Demonstrated
limited critical
thinking in
discussing the
similarities and
differences
between the
three states.
11 points
(0-11 points)
Demonstrated
little to no
critical thinking
in discussing
the similarities
and
differences
between the
three states.
20 points
Statistical tools
were
constructed
correctly and
strongly
supported the
discussion.
18 points
(16-18 points)
Statistical tools
were
constructed
correctly and
generally
supported the
discussion.
15 points
(12-15 points)
Statistical tools
were
constructed
correctly and
but did not
support the
discussion.
11 points
(0-11 points)
Statistical tools
were not
constructed
correctly but
did not
support the
discussion.
5/21/22, 7:25 PM Preview Rubric: 3.2 Assignment: Confidence Limits (75 points) – 3SU2022 Data Analytics & Research (BADM-707-01B) – Indiana Wesleyan U…
https://brightspace.indwes.edu/d2l/lp/rubrics/preview.d2l?ou=165060&rubricId=518399&originTool=quicklinks 2/4
Criteria Excellent Competent Needs Improvement
Inadequate/Faili ng
Criterion Score
Confidence
limits
/ 2020 points
Demonstrated
clear, insightful
critical thinking
in the analysis
of confidence
limits.
19 points
(16-19 points)
Demonstrated
competent
critical thinking
in the analysis
of confidence
limits.
15 points
(12-15 points)
Demonstrated
limited critical
thinking in the
analysis of
confidence
limits.
11 points
(0-11 points)
Demonstrated
little to no
critical thinking
in the analysis
of confidence
limits…
5/21/22, 7:25 PM Preview Rubric: 3.2 Assignment: Confidence Limits (75 points) – 3SU2022 Data Analytics & Research (BADM-707-01B) – Indiana Wesleyan U…
https://brightspace.indwes.edu/d2l/lp/rubrics/preview.d2l?ou=165060&rubricId=518399&originTool=quicklinks 3/4
Total / 75
Criteria Excellent Competent Needs Improvement
Inadequate/Faili ng
Criterion Score
Grammar,
Spelling,
Length, and
Citation
/ 1515 points
Sentence
structure is
complete with
correct
spelling,
punctuation,
capitalization,
varied diction,
and word
choices.
Assignment
length is
correct with
sources
correctly cited.
14 points
(12-14 points)
Sentence
structure has
minor errors
(fragments,
run-ons) with
correct
spelling,
punctuation,
capitalization,
and limited
diction and
word choices.
Assignment
length is
correct with
sources
correctly cited.
11 points
(9-11 points)
Sentence
structure has
several errors
in sentence
fluency with
multiple
fragments/run-
ons; poor
spelling,
punctuation,
and/or word
choice.
Assignment
length is
inappropriate
with several
format and
citation errors.
8 points
(0-8 points)
Sentence
structure has
serious and
persistent
errors in
sentence
fluency,
sentence
structure,
spelling,
punctuation,
and/or word
choice.
Assignment
length is
inappropriate
with several
format and
citation errors
or sources not
cited.
5/21/22, 7:25 PM Preview Rubric: 3.2 Assignment: Confidence Limits (75 points) – 3SU2022 Data Analytics & Research (BADM-707-01B) – Indiana Wesleyan U…
https://brightspace.indwes.edu/d2l/lp/rubrics/preview.d2l?ou=165060&rubricId=518399&originTool=quicklinks 4/4
Overall Score
Excellent 69 points minimum
Competent 62 points minimum
Needs Improvement 54 points minimum
Inadequate/Failing 0 points minimum
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