Compute sample proportions and verify nonskewness criterion

Assignment Help Basic Statistics

Reference no: EM131436487

Economics and Finance

Online investing has grown with the Internet and with companies like E*TRADE and Ameritrade. Independent random samples of investors were obtained and asked whether they traded online within the past year. The data are given in the following table, by portfolio size.

2134_Table 03.jpg

a. Compute the sample proportions and verify the nonskewness criterion.

b. Construct a 95% confidence interval for the difference in population proportions of online investors.

c. Using the interval in part (b), is there any evidence to suggest that the population proportion of online investors is different for these two portfolio classifications? Justify your answer.

Reference no: EM131436487

Questions Cloud

What strategic marketing tools : What strategic Marketing tools can be used to develop a marketing strategy to advertise the importance of higher education to not only women but other minorities in the United States? Explain why.

Describe the use of internal rate of return and npv : Describe the use of internal rate of return (IRR), net present value (NPV), and the payback method in evaluating project cash flows. Describe the advantages and disadvantages of each method.

What is management and why does it matter : What Is Management And Why Does It Matter? Management is incorporated in all types of business in some way because it is management that directs the different efforts towards the organizations goals.

Develop three experiential interventions : Read the Vargas Family Case Study: Module 6. Develop three experiential interventions that you would use with the Vargas family. It's time to get creative! You have noticed that the Vargas family struggles with emotional expression, particularly..

Compute sample proportions and verify nonskewness criterion : Compute the sample proportions and verify the nonskewness criterion.- Construct a 95% confidence interval for the difference in population proportions of online investors.

Distinction between white-collar and corporate crime : Discuss the distinction between white-collar and corporate crime. Discuss the two categories in regard to the factors of Crimes of commission vs. crimes of omission. Is 'White-Collar Crime' Crime?

How would you categorize the types of knowledge : SOC101 :For this discussion, you must read Chapter 8 and Chapter 9 of the text, Sociology: Beyond Common Sense, the article The 'Pink vs Blue' Gender Myth, and watch the three videos, Social Construction, RACE: Are We So Different?, and A Girl Like M..

What kinds of strategies or approaches do they suggest : Pull 3-5 quotes from the article, see how those quotes apply to the business field. What kinds of strategies or approaches do they suggest and in what areas of business would they be most useful?

User Account

All Pages