1. Calculating confidence intervals will ________ give us the exact estimate of the population mean.

A. always

B. usually

C. rarely

D. never

2. The symbol used to tell Excel that the cell from which information comes should NOT change when the formula is cut and pasted in another cell is ________.

A. %

B. $

C. #

D. @

3. The smaller the sample standard deviation, the ________.

A. narrower the normal curve will be

B. more spread out the normal curve will be

C. shorter the normal curve will be

D. flatter the normal curve will be

4. A confidence interval is a range in which the ________.

A. sample mean probably falls

B. sample standard deviation probably falls

C. population mean probably falls

D. population standard deviation probably falls

5. For both t-tests and ANOVA, significant mean differences are found when which of the following is true?

A. p > .05

B. p.10

C. p < .10

D. p.05

6. Which of the following is the most appropriate way to graph the following data?

Tests	Quizzes	Attendance	Homework	Project
20%	10%	5%	15%	50%

A. scatter plot

B. bar graph

C. histogram

D. pie chart

7. The null hypothesis states that ________.

A. there is no difference between the parameters of the two populations

B. there is no difference between the statistics of the two populations

C. there is a difference between the parameters of the two populations

D. there is a difference between the statistics of the two populations

8. The standard normal distribution has is a curve with ________.

A. its own mean and standard deviation

B. a set mean and standard deviation

C. an unequal mean, median, and mode

D. an equal mean and median, but an unequal mode

9. To calculate measures of central tendency and measures of variability, which option do you select from the Data Analysis menu?

A. z-tests

B. correlation

C. regression

D. descriptive statistics

10. Using the standard normal table, determine the proportion of the area under the normal curve that falls between z = -.30 and z = .30.

A. .1179

B. .2358

C. .6179

D. .8821