Chapter 20 - Chance Errors in Sampling
Stat CHAPTER 20
1. Tossing a fair coin: Find EV and SE for sums and percentages as the tosses increase from
100 to 2500 to 10,000 to 1,000,000
Box model will be [ 0 1 ] for a fair coin, so mean = 0.5
STAT 400 FINAL EXAM May 19, 2003
R. Johnson To get credit, you must show your work.
1. Of the people passing through an airport metal detector, 4% activate it.
Let Y = number among a randomly selected group of 750 who activate the
detector. Find P(
MIDTERM 1STAT 400SUMMER 1997BOYLE
There are 150 possible points. Each problem is worth 30 points. Put a box
around the nal answer to a question.
1. (a) [15 pts] Suppose P is a function which attaches a number P (A) to each
event A in a sample space S. Wha
Statistics 400 Pic/Q.
December 16, 2002
You may use your class notes, problem set solutions, old problems sets, your textbook (and no other
book), a translating dictionary, and a calculator. Show the details of your calculat
MIDTERM 2 STAT 400 BOYLE SUMMER 1997
There are 156 points possible. The parts in questions 4 and 5 have equal weight.
1. (25 points) In a certain state, 40% of the drivers wear a seatbelt. In a random
sample of 1000 drivers, approximately what is the prob
STAT400 Section 0901
Show all your work. No notes, books, or calculators. Please remember to put your name on all pages that you submit.
Write and sign the University Honor Pledge on one of your answer sheets. It reads as follows,
Applied Probability and Statistics/Stat 400/Spring 2002/G1az
May 18, Saturday, 10:30 12:30
Final Exam Stat 400, Applied Probability and Statistics
There are 200 points possible; I will grade 8 problems of your choice from the 9 problems below.
It must be
cfw_rer Scimitar? oz
STAT 400 SUMMER II 2001: Hour Exam #3
August 22, 2002
1. [25 pts] Determine each of the following or approximate it as best you
can, giving the basis for your approximation.
(a) 25.025 with 55 degrees of freedom.
(b) 1501 with 4
STAT 400 FINAL EXAM May 19, 2001
1. Suppose the proportion of blood phenotypes in a particular population are
A B AB 0
.42 .10 .04 .44
Assuming that the phenotypes of two randomly selected individuals are
independent of one another,