Compute standard error of each estimator

Assignment Help Basic Statistics

Reference no: EM131768342

Question: Continue with Exercise, and suppose that the survey is to estimate two characteristics of the university students. One characteristic is thought to have a prevalence of roughly 50% of the population and the other only 10%. For each of the following conditions, find the sample size required.

a. Both estimates are to be accurate to about 1% (i.e., the standard error of each estimator should be at most 1%).

b. Each statistic is to be accurate to about 1/10 of its population parameter.

Exercise: Suppose a survey of the 32,000 students at a university is planned. The goal of the survey is to estimate the percentage of the students who own PCs. Find the minimum sample size required to make a 95% confidence interval for the population percentage that is at most 4 percentage points wide. The variance of the population is unknown. Ignore the finite population correction factor.

a. In your calculation of the sample size use the percentage of students who own PCs in the survey of the statistics class to estimate the population variance for the university students.

b. Instead of using the percentage from the statistics class sample in your calculation, assume the worst-case scenario - that is, the largest variance possible for the parameter.

Reference no: EM131768342

Questions Cloud

Risk management and health care legislation : Explain the relationship between risk management and health care legislation. How does one impact the other?

Product management and branding strategies : Describe Coca Cola's international product management and branding strategies.

Analyze the history of the diagnosis : Provide an in-depth analysis of a schizophrenia. The paper should analyze the history of the diagnosis, the specific criteria to have a diagnosis.

Estimate the population variance for the university students : In your calculation of the sample size use the percentage of students who own PCs in the survey of the statistics class to estimate the population variance.

Compute standard error of each estimator : Continue with Exercise, and suppose that the survey is to estimate two characteristics of the university students.

How accurately are the public administration aspects : How accurately are the public administration or bureaucracy aspects of this work of fiction portrayed by the producer/creator/writer/author of the work you sele

Find the area of the shaded region : Find the area of the shaded region. The graph depicts the standard normal distribution with mean 0 and standard deviation 1

Provide a definition of international gothic style : Definitions. For each term provide a definition of International Gothic Style as well as an example of the term from the material covered in the course.

Compute sample size for the undergraduate survey : In a survey of students at a large university, graduate students and undergraduates are to be surveyed separately. A simple random sample of 100 of the 4000.

User Account

All Pages