Homework Help: statistics

Posted by AMY on Sunday, February 20, 2011 at 7:02pm.

Consider a 95% confidence interval for a population mean constructed from a random sample of 250 observations taken from a Normal population. Sigma is known to be 14. If we were to construct another 95% confidence interval, this time using 1,000 observations, how would the length of this interval compare to the length of the original interval?

No one has answered this question yet.

Answer this Question

Related Questions

statistics - Consider a 95% confidence interval for a population mean ...
statistics - A simple random sample of 60 items resulted in a sample mean of 80...
Statistics - Which of the following statements correctly interprets a 95% ...
business statistics - A random sample of size 15 taken from a normally ...
Statistics - A 95% confidence interval for a population mean, ?, is given as (18...
Statistics - Which of the following statements best describes the uncertainty ...
statistics - Use the given confidence level and sample data to find a confidence...
statistics - a. A random sample of 25 was drawn from a normal distribution with ...
statistics - Suppose X has a mound-shaped distribution with sigma=9. A random ...
statistics - A researcher wants to estimate the proportion of a population which...

For Further Reading

First Name:
School Subject:
Answer: