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.

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