There are 27 problems, each 4 pts so grade out of 108 total points.
Exam II Key
First, please make sure the key is correct. If there number is close to what we have in the
key for any of the problems, give them full credit (I mean if they have the first d
Test III
Name:
CWID:
No partial credit will be given. Do not write in fraction; write in decimal and round your
answer to three decimals whenever possible.
1. The z statistic for a onesided test is z = 2.433. This test is
(a)
Not significant at either =
1. The most common intelligence quotient (IQ) scale is Normally distributed with mean 100
and standard deviation 15. Many school districts across the country seek to identify
"Gifted and Talented" children for special enrichment programs. Typically, these
3.4 Mean and median. Figure 3.7 displays three density curves, each with three points marked
on them. At which of these points on each curve do the mean and the median fall?
FIGURE 3.7
Three density curves, for Exercise 3.4.
3.6
Fruit .Thelengthofthethora
STAT2053
Final Exam
Name:
CWID:
2 pts. 1. An instructor asked students to name their favorite color. An appropriate graph to
display the data is a
a. Histrogram
b. Pie Chart
c. Time plot
4 pts. 2. A sample of 40 employees from the local Honda plant was ob
Statistics 100 Exam 1
2012 Fall
STATISTICS 100 EXAM 1
2012 Fall
PRINT
NAME_
(Last name)
CIRCLE SECTION please!
C1 12:30 pm
_
(First name)
S1 3:30 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when reque
Stat 100 Exam 1
Spring 2010
STATISTICS 100 EXAM 1
PRINT
Spring 2010
NAME_
(Last name)
CIRCLE SECTION please!

X1 noon
_
(First name)
F1 2pm
G1 3pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when reques
Exam II Review
1. a. If you flip three coins once, what is the sample space?
b. What is the probability of getting exactly three tails?
c. calculate b again using binomial distribution formula.
For questions 35, assume that event A occurs with probabilit
Stat 100 Exam 1
Spring 2012
STATISTICS 100 EXAM 1
PRINT
Spring 2012
NAME_
(Last name)
CIRCLE SECTION please!
F1 9:30 am
_
(First name)
R1 12:30 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when request
Study Guide for the Final
Final Exam Format
The final is comprehensive and all multiplechoice (Scantron graded).
It will have 100 questions (i.e., 100 Scantron bubbles to fill in) with this approximate breakdown:
Exam 1 material: about 22 questions
Exam
Stat 100 Exam 2
PRINT NAME
Spring 2013
_
(Last name)
_
(First name)
CIRCLE SECTION (worth 1 pt.) F1 11:00 am
R1 2:00 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when requested. No work, no credit.
No
Stats 100
PRINT
Spring 2010
NAME_
(Last name)
CIRCLE SECTION
X1 Noon
_
(First name)
F1 2 pm
G1 3 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when requested.
No notes or books are allowed. Calculators
Stat 100 Exam 1
Fall 2011
STATISTICS 100 EXAM 1
Fall 2011
PRINT
NAME_
(Last name)
CIRCLE SECTION please!
C1 12:30 pm
_
(First name)
S1 2:00 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when requested,
Stat 100 Exam 2
PRINT
NAME_
(Last name)
CIRCLE SECTION
M1 9:30 am
Spring 2011
_
(First name)
R1 12:30 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when requested.
No notes or books are allowed. Calcula
Statistics 100 Ex am 1
Spring 2009
STATISTICS 100 EXAM 1
PRINT
Spring 2009
NAME_
(Last name)
CIRCLE SECTION please!
X1 noon
_
(First name)
F 1 2 pm
G1 3 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK whe
Exam 1 Stat 100
Fall 2010
STATISTICS 100 EXAM 1
PRINT
Fall 2010
NAME_
(Last name)
CIRCLE SECTION please!
M1 9:30am
_
(First name)
C1 12:30pm
S1 2pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when reques
Stat 100 Exam 2
PRINT
2010 Fall
NAME_
(Last name)
CIRCLE SECTION
M1 9:30 am
_
(First name)
C1 12:30 pm
S1 2:00 pm
Write answers in appropriate blanks. When no blanks are provided CIRCLE your answers.
SHOW WORK when requested.
No notes or books are allowed
1. To assess the accuracy of a laboratory scale, a standard weight (with known value) is
repeatedly
weighed a total of n times, and the mean x of the sample weights is computed. Suppose
the scale
readings are Normally distributed, with unknown mean and st
1. C
2. B
3. 27061
4. C
5. .
6. 2.142
7. 0.04<pval<0.05
8. Yes
9. C
10. 14
11. [1.761,2.145] [0.025,0.05]
12. Yes, no
13. A
14. C
15. A
16. [0.77,0.81]
17. 6 or 5 too small
18. B
19. D
20. D
Test III Review
If you find any error in the review, please let me know.
1. The z statistic for a twosided test is z = 1.962. This test is
(a) not significant at either = 0.05 or = 0.01.
(b) significant at = 0.05 but not at = 0.01.
(c )significant at bot
Chapter 1
1.24 Protecting wood. How can we help wood surfaces resist weathering, especially
when restoring historic wooden buildings? In a study of this question, researchers
prepared wooden panels and then exposed them to the weather. Here are some of th
15.29
(a) H0: = 0 vs. Ha: > 0.
(b)
. (c) This value of z is far outside the range we would expect from the N(0,1) distribution. Under
H0, it would be virtually impossible to observe a sample mean as large as 2.35 based on a sample
of 200 men. Hence we wou