find the standard deviation, Basic Statistics

Research Question:

Percentage of students who drank a can, bottle, or glass of soda or pop (not including diet soda or diet pop) at least 1 time per day during the seven days before the survey

To complete a project you will have to complete the following steps:

1)      Study the research question and write a short description about it (roughly 75 to 100 words).

2)      Collecting Data and  Summarizing Data -

- Study the website given to you and choose a random sample from the population

a)      Define your population and sample.  Describe the advantages and disadvantages of choosing a sample. State how you chose sample members and give reason for the same.

b)      Your sample size must have at least 30 from your population. 

c)      Use frequency table to summarize the data you have collected. Explain the reason for choosing the structure and design of the frequency table.

3)      Presenting Data -

a)     Use graphs and charts to highlight some of the findings in your research. Use at least 3 graphs and charts to present the data.

b)     Where applicable calculate mean, median and mode.

c)     For some of your findings elaborate on the meaning of these averages and explain using a drawing whether the averages display a symmetrical distribution or skewed distribution.

d)     Find the standard deviation and discuss the consistency of your data.  Discuss the spread in your data.

4)      Analysis

a)      Explain the difference between parameters and statistics.  What are the measures of dispersion?  Explain each one of them.

b)      Do you think the results are a good representative of the entire population?

c)      Create confidence interval at the 90% level.

d)     To guarantee a 95% confidence level, what sample size is required?

e)      Do you think you need to modify the sample you started with?

f)       Do you think the nature of data you are dealing with is qualitative or quantitative?

g)      Are the data continuous or discrete?

5)      Conclusion

Can you recommend an action plan to deal with the problems identified in your survey? Elaborate.

Posted Date: 2/23/2013 7:13:34 AM | Location : United States







Related Discussions:- find the standard deviation, Assignment Help, Ask Question on find the standard deviation, Get Answer, Expert's Help, find the standard deviation Discussions

Write discussion on find the standard deviation
Your posts are moderated
Related Questions
Standard costing In contemporary price sales, the idea of documenting traditional expenditures was taken further, by assigning the organization''s set expenditures over a given

Textbook The basic practice of statistics, 5th Edition by David S. Moore; Freeman EX:14.37, 14.38, 14.39, 17.5, 17.28a

After analyzing the data the researcher has to test ten hypotheses various tests such as chi square test t test have been developed by statisticians for the purpose. The hypotheses

difference b/w historigrams & histogram?

Volumes due from personal individuals or companies for products, and/or solutions equipped by the condition. Records Receivable does not involve amounts due from other companies, r

how p(x)=hyper geometric distribution is probability mass function

Question: Imagine that your client, Hillside County Forest Preserve (HCFP), is considering how best to protect their natural lagoons.  They have asked for your help, and you ha


What is F2 Test, These tests were based on the assumption that the samples were drawn from normally distributed populations, or more accurately that the sample means were normally

Inventory control Inventory Control is the guidance of provide, storage and convenience of items to ensure an adequate provide without excessive oversupply. It can also be known a