Wednesday

July 30, 2014

July 30, 2014

Posted by **Anonymous** on Tuesday, July 31, 2012 at 2:35am.

of n = 20. While the true value of the population standard deviation is unknown, the

researcher is reasonably sure that the population is normally distributed. Given this

information, which of the following statements would be correct?

A. The researcher should use the z-test because the population is assumed to be

normally distributed.

B. The t-test should be used because á and ì are unknown.

C. The t-test should be used because ó is unknown and the sample size is small.

D. The researcher should use the z-test because the sample size is less than 30.

- statistics -
**MathGuru**, Tuesday, July 31, 2012 at 7:39pmHow about C?

**Related Questions**

statistics - Given a sample size of 38, with sample mean 660.3 and sample ...

Statistics - This is the first question..... For a population that has a ...

Business Statistics - In a goodness-of-fit test, the null hypothesis states that...

Statistics - I have a question that involves explaining what is wrong in each of...

statistics - For each of the following samples that were given an experimental ...

statistics - For each of the following samples that were given an experimental ...

statistics - For each of the following samples that were given an experimental ...

statistics - For each of the following samples that were given an experimental ...

Statistics - : For each of the following samples that were given an experimental...

Statistics - For each of the following samples that were given an experimental ...