Math 155: Practice Questions
September 29, 2011
1. (Focus Problem: Fireies) Suppose you are conducting a study to compare rey populations
exposed to normal daylight/darkness conditions with rey popula
Math 251: Practice Questions from Chapters 13
Hints and Answers
I.A. Levels of Data, Types of Samples
I.A.1. Categorize the following data according to level: nominal, ordinal, interval, or ratio.
(a)
Math 155 Rough Answers
FT.A Hypothesis test on Proportions
FT.A.1. (a) Suppose that a February 2007 Gallup poll of 1200 randomly selected voters found
that 53 percent support George W. Bushs energy po
Math 251: Practice Questions
(Hints and Rough Answers)
Review II. Questions from Chapters 46
II.A Probability
II.A.1. (a) 120/500 = .240
(b) 0/200 = 0
(c) 300/500 = .600
(d) 120/300 = .400
(e) 120/500
Math 155, In-class Exercise
October 3, 2011
Names:
Instructions. Turn in worksheet at the end of class for credit. This is a participation worksheet.
1. Consider the data 1,2,2,3,4,6,17,18,20,20,21,22
Math 155
September 29, 2011
Names:
1. (Focus Problem: Fireies) Suppose you are conducting a study to compare rey populations
exposed to normal daylight/darkness conditions with rey populations exposed
Math 155: Practice Questions
September 27, 2011
Names:
1. Categorize the following data according to level: nominal, ordinal, interval, or ratio.
(a) Length of time to complete an exam.
(b) Course eva
Math 251: Practice Questions
September 27, 2011
1. Categorize the following data according to level: nominal, ordinal, interval, or ratio.
(a) Length of time to complete an exam.
(b) Course evaluation
Math 155: Practice Questions for Test III
Rough Hints and Answers
III.A.1 (a) Convert x to z using z =
x
. Then
P (67 x 69) = P (.33 z .33) = .6293 .3707 = .2586.
x
.
(b) The sample size is n = 9, and
Math 155: Practice Questions for Test III
Hints and Answers
The following are some of the types of questions you may see on Test III. Many of the questions
are from the current or previous editions of
Math 155 Review for Final Test
Notes. The nal test will be comprehensive with approximately 1/4 of the test covering new material.
See your previous tests and reviews for an overview of the remaining
Math 251, Final Exam Name: Instructions: Do 12 of the following 13 questions. Each question is worth 10 pts; show all appropriate work. This is similar to nals from past years. Do not use this as a st
Math 155: Practice Questions
Review II. Questions from Chapters 46
For some examples of recent tests on this or similar material, see copies of Test 2 from Winter
2007, Spring and Autumn 2007, as avai
Review Questions on Chapters 13
For further practice on questions from Chapters 1 to 3, see Test 1 from Autumn 2007, Spring 2007,
Winter 2007, and from Autumn 2003 from Math 251 available at this link