Confidence Interval
Details:
In the Topic 1 Assignment, you compared the BMI values from Data Set 1 (in the appendix of the textbook) from a perspective of measuring the center and variation of the data. Chapters 5 and 6 in the textbook allow you to use more sophisticated tools to estimate the parameters of a population.
Refer to Data Set 1 in Appendix B and use the sample data with Excel and/or SPSS to accomplish the following:
 Construct a 99% confidence interval estimate of the mean body mass index for men.
 Construct a 99% confidence interval estimate of the mean body mass index for women.
 Compare and interpret the results. It is known that men have a mean weight that is greater than the mean weight for women, and the mean height of men is greater than the mean height of women. Do men also have a mean body mass index that is greater than the mean body mass index of women?
This assignment uses a grading rubric. Instructors will be using the rubric to grade the assignment; therefore, students should review the rubric prior to beginning the assignment to become familiar with the assignment criteria and expectations for successful completion of the assignment.
TEXTBOOK: Triola, M. F., &Triola, M. M., (2006). Biostatistics for Biological and Health Sciences. Boston, MA: Pearson Education, Inc.
APPLY Rubrics
Confidence Interval

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100.0 %Content 


15.0 %Construct a 99% confidence interval estimate of the mean body mass index for men 
Did not complete the estimate. 
Incorrectly constructed estimate; significant mistakes were made. 
Constructed an estimate, but numerous mistakes were made. 
Correctly constructed an estimate, but some minor mistakes were made. 
Correctly constructed an estimate. 

15.0 %Construct a 99% confidence interval estimate of the mean body mass index for women. 
Did not complete the estimate. 
Incorrectly constructed estimate; significant mistakes were made. 
Constructed an estimate, but numerous mistakes were made. 
Correctly constructed an estimate, but some minor mistakes were made. 
Correctly accomplished the task in all aspects. 

55.0 %Results (Compare and interpret the results) 
Gives vague and/or incomplete description of the results. More than one major component of the criteria is missing. 
Presents an inadequate description of the results. Offers biased interpretations. Identifies with minimal detail the estimated changes that would need to take place. 
Presents a brief description of the results. Misinterprets some results. Identifies with minimal detail the estimated changes that would need to take place. Provides some detail although limited. 
Presents a full description of the results. Presents a logical interpretation of the results. Supplies the rationale for any estimated changes that would need to take place. Information is accurate, appropriate, and integrated effectively. 
Presents a full detailed indepth description of the results. Accurately interprets results. Presents specific detail and rationale for any estimated changes that would need to take place. Demonstrates an understanding of the principles and elements and reflects a sophisticated understanding of the subject knowledge. Information is accurate, appropriate, and integrated effectively. 

15.0 %Mechanics of Writing (includes spelling, punctuation, grammar, language use) 
Surface errors are pervasive enough that they impede communication of meaning. Inappropriate word choice and/or sentence construction are used. 
Frequent and repetitive mechanical errors distract the reader. Inconsistencies in language choice (register), sentence structure, and/or word choice are present. 
Some mechanical errors or typos are present, but are not overly distracting to the reader. Correct sentence structure and audienceappropriate language are used. 
Prose is largely free of mechanical errors, although a few may be present. A variety of sentence structures and effective figures of speech are used. 
Writer is clearly in command of standard, written, academic English. 

100 %Total Weightage 

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