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
1. A researcher was interested lowering the high school dropout level in his county. He measured the reading level of students entering middle school (based on a standard test) and

when testing hypothesis is the level of significanc the type error I?

Ask question #MinimumAgency revenues. An economic consultant was retained by a large employment agency in a metropolitan area to develop a regression model for predicting monthly a

Continuous probability distributions: Procurement and working capital analysis – Normally distributed random variables and their transformation Procedures The data is measure

Buildings solutions Permanent arrangements owned or held by the state. The cost of buildings includes both acquisition costs (historical cost, ancillary costs, and, for proprieta

Question: (a) Suppose that 100 tires made by Bridgestone last on average 21,819 miles with a standard deviation of 1,295 miles. Test the null hypothesis µ = 22, 000 miles again

#question:how cost classification can helpful for planning, controlling and decision making

how does wave act as in interfrence?

Consider the sample data for plants A, B, C & D of the above company, which are tabulated in table 1. Test whether the four means are equal at the 5% level of significance. Perform

This assignment is designed to compare performance between Matlab and Excel for performing nonlinear regression analysis of a set of data. There are two data sets in the accompanyi