Posted by **Melanie ** on Wednesday, November 14, 2012 at 7:35am.

When estimating a population mean μ, where the population standard deviation σ is known, we can:

a. choose a larger z value, construct a wider confidence interval, and achieve a lower confidence level

b. choose a smaller z value, construct a narrower confidence interval, and achieve a higher confidence level

c. define the limits of an interval estimate of μ as x zα/2σ/√n

d. define the limits of an interval estimate of μ as x tα/25/n

## Answer This Question

## Related Questions

- Statistics - The standard deviation for a population is σ = 15.3. A sample ...
- Statistics - These are the only ones that I am having problems with. Please help...
- Statistics - Which of the following statements correctly interprets a 95% ...
- Statistics - Find the margin of error for a 95% confidence interval for ...
- Statistics - Find the margin of error for a 95% confidence interval for ...
- Statistics - 1. A certain population follows a normal distribution, with mean m ...
- statistics - A simple random sample of 60 items resulted in a sample mean of 80...
- Statistics - 1. A study of 40 people found that they could do on the average15 ...
- statistics - Sample with size n = 100 has mean = 30. Assuming the population ...
- statistics - Sample with size n = 100 has mean = 30. Assuming the population ...

More Related Questions