Practical problems arise in establishing a frame

Reference no: EM131122403

Using the data from your own survey (see Exercise 5 of Chapter 2) give 95% and 99% confidence intervals for the population mean and total.

Exercise 5 The best way to gain understanding of a sampling and estimation method is to carry it out on some real population of interest to you. If you are not already involved in such a project professionally, choose a population and set out to estimate the mean or total by taking a simple random sample. Examples include estimating the number of trees on a university campus by conceptually dividing the campus into plots, estimating the number of houses in a geographic area by selecting a simple random sample of blocks, or estimating the mean number of people per vehicle during rush hour. In the process of carrying out the survey and making the estimates, think about or discuss with others the following:

(a) What practical problems arise in establishing a frame, such as a map or list of units, from which to select the sample?

(b) How is the sample selection actually carried out?

(d) Estimate the population mean and total.

(e) Estimate the variance of the estimators used in part (d).

(f) How would you improve the survey procedure if you were to do it again?

Reference no: EM131122403

Questions Cloud

Confidence interval for the population mean : (c) For each sample, construct a standard 95% confidence interval for the population mean. What is the actual coverage probability for the method with this population and design?

How concept that you identified could affect the us economy : Identify at least four key points of a relevant economic article from either or a newspaper. The article must deal with any course concepts covered in Weeks 1-8. Explain how the concept that you identified in Question 2 could affect the U.S. econom..

Confidence intervals for the population total : From the data of parts (a) and (b) of Exercise 1 of Chapter 2, construct approximate 95% confidence intervals for the population total. Also construct approximate 95% confidence intervals for the population mean per unit

Statements regarding judicial behavior : Which of the following statements regarding judicial behavior is true?

Practical problems arise in establishing a frame : Exercise 5 The best way to gain understanding of a sampling and estimation method is to carry it out on some real population of interest to you.

Prepare a t account for the accounts payable creditor : Prepare T accounts for the accounts payable control and cleaning supplies accounts. Post control totals to the two accounts, and determine their ending balances.

Can environmental influences explain these findings : Select two diseases-one with high heritability and one with low heritability-and describe the genetic components of the diseases. In your opinion, do the individuals who inherit these diseases have a high mortality, or death, rate? Why?

Made contributions to the judge election campaign : During a court case, it was determined that both the litigants and their attorneys had made contributions to the judge's election campaign. It was therefore ethically essential that the

Compute the sample variance : (a) Compute directly the variance var(y) of the sample mean and the variance var(m) of the sample median.

User Account

All Pages