quiz_8 - Georgia Southern University, College of Business...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: Georgia Southern University, College of Business Administration BUSA 3131 Business Statistics Fall 2011 QUIZ 8 Name: _______________ 1. In hypothesis testing where the standard deviation () of the population is known, we often test to verify that the sample mean ( x-bar ) is not less than some value. Is this a one or two-tailed test? a. one-tailed b. two-tailed 2. If we are mainly concerned about identifying observed values below some range, would the test be a lower-tail or an upper-tail test? a. lower-tail b. upper-tail 3. Only one of the following pairs of hypotheses correctly states the hypotheses for an upper tail test. Which one is correct? Pair A Pair B Pair C H o : o H o : o H o : o Ha : < o Ha : < o Ha : o 4. Only one of the following pairs of hypotheses correctly states the hypotheses for a lower tail test. Which one is correct? Pair A Pair B Pair C H o : o H o : o H o : o Ha : < o Ha : < o Ha : o 5. Only one of the following pairs of hypotheses correctly states the hypotheses for a two-tailed test. Which one is correct? Pair A Pair B Pair C H o : o H o : o H o : = o Ha : < o Ha : o Ha : o 6. In hypothesis tests where the standard deviation of the population is known, we sometimes test to verify that the sample mean is not different than some specific value. Is this a one-tail or a two tail test? a. one-tail b. two-tail 7. Sampling error ( SE) is a computer simulation of which of the following: a. the standard deviation of the mean of a sample b. the standard deviation of the mean of over 100 samples c. the mean of a sample d. the mean of a random sample 8. TRUE or FALSE: Sampling error ( SE ) is the estimate of variation among multiple samples called the sampling distribution ....
View Full Document

Page1 / 4

quiz_8 - Georgia Southern University, College of Business...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online