# Recently in Exam Category

## Office Hours for Finals Week

Office hours for finals week:

Monday: 10-Noon
Tuesday: 10-Noon
Wednesday: 10-Noon
Friday: 10-Noon

Or by appointment

## Review for Final Exam

The final (150 points) will take place Wednesday, April 5th at 2:00.  The location is 101C Junker Center.

There will be a review on Tuesday, May 4th at 8:00 PM in 165 Nick.
Chapter 2 (Page 117)
13, 21-24, 25, 29, 37-40

Chapter 5 (Page 297)
23, 24, 33-36, 39-45 odd

Chapter 6 (page 353)

1 (mean=103.5, sd = 34.7), 3, 5, 17, 19, 21, 31, 33, 39

Chapter 7 (page 427)

7, 9, 19, 22, 20, 21, 45

Chapter 8 (page 481)

7 and 8

Chapter 9

final_review.pdf

Chapter 2
22. Right skewed
24. Mean
38. 68 inches

Chapter 5

24. a. .9544, b. .3420, c. .0026
34. 53.7
36. 47.89 meters

## Locations for Exam #2

Section 1:

9:30-11:30 in Nick 170

Section 2

12:00-2:00 in Nick 168

## Review for Exam #2

Chapter 5 (page 297)

39-45 odd

Chapter 6 (page 353)

1 (mean=103.5, sd = 34.7), 3, 5, 17, 19, 21, 31, 33, 39

Chapter 7

7, 9, 19, 22

Two sample proportion problem:

Among children under the age of 7, 134 out of 548 tested positive for the H1N1 virus in a large school district. For children between the ages of 7 and 12, 28.4% out of 750 tested positive for H1N1. Construct the 95% confidence interval for the difference in percent infections between children under the age of 7 and 7 or older.

Two sample mean problem:

Two groups of laboratory rats are raised in different size cages. Group A rats were raised in cages four times as large as the rats in Group B. Based on the data below, use a 90% to determine if there is a difference in the body weights. Be sure to interpret your confidence interval in the context of the problem.

Group A Group B

Mean                       418g      392g

Standard Deviation    35g       42g

Sample Size             43         38

22.

Ho: mu <= 650

Ha: mu > 650

z* = 1.17

p = .121

Fail to reject, there is not enough evidence to suggest that the daily cost is more than \$650.  We cannot reject the claim.

2 Sample Proportion CI

-.039 +/- .049 = (-.088,.010)

2 Sample Mean CI

26 +/- 14.23 = (11.8,40.2)

## Review for Exam #1

Answers to odd questions can be found in the book.  Answers to even numbered questions will be found below (coming soon!)

Chapter 1 (Page 31)
1-4, 11-14  (For 11-14, also include continuous, discrete, nominal, or ordinal)

Chapter 2 (Page 117)
13, 21-24, 25, 29, 37-40

Chapter 3 (Page 185)
13-14, 21-22, 25-27, 29, 30

Chapter 5 (Page 297)
23, 24, 33-36

Chapter 1
2. Population: All nurses in SF, sample: 38 nurses
4. Population: All physicians in US, sample: 1205 physicians
11. Quantitative, continuous or discrete
12. Categorical, nominal
13. Quantitative, discrete (if years) or continuous (if in days, minutes, etc.)
14. Categorical, nominal

Chapter 2
22. Right skewed
24. Mean
38. 68 inches

Chapter 3
14. 0.894
22. 0.2353
26. 0.25

Chapter 5
24. a. .9544, b. .3420, c. .0026
34. 53.7
36. 47.89 meters