Statistics for Business
MATH 1140-06 Fall 2013
due date:
November 21, 2013
Homework 12
Problem 1. In a warehouse there are 10 large boxes of bolts. It is known that 9
boxes have a corruption rate of p = 25% and 1 box has a corruption rate of p = 75%.
Howe
Exam 1 Math 1140 9/20/13
Form A
Name_
Section _ Show all relevant work. There are 20 problems.
Round your answers to 4 decimal places, unless the answer naturally rounds off to fewer decimals
places. Please do not detach any pages from the exam. All probl
Practice for Exam 1.
The formula sheet for Exam 1 is at the Bottom of this document.
Letter Grades
We have the letter grades for a sample of 25 exams given to a population of 1000 students:
Grade = A, B, B, B, C, C, C, D, C, C, D, F, F, C, F, A, C, C, C,
Chapter 4
Random Variable- A variable that assumes numerical values associated with the random
outcomes of an experiment, where one numerical value is assigned to each sample point
Discrete Random Variable- Random variables that can assume a countable num
Population A set of units we are interested in studying
Sample- A subset of units of the populations
Statistical Inference An estimate or prediction of some other generalization about a population
based on information contained in the sample
Representativ
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P(A B)=P(A) + P(B) P(A B)
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Test Statistics:
Poo
Disclaimer: The review problems that follow are intended for all of the statistic courses that I am
teaching this semester: Math 1110, Math 1140 and Math 1230. As such, the topics that are covered
are common to all three courses. This being the case, ther
Exam 2 Practice Problems for Math 1140
The formula sheet for Exam 2 is at the end. There is a right body table for the standard normal
distribution at the end.
Urn
We have an urn which contains 6 green balls and 14 blue balls. Suppose we select a ball fro
Exam 2 Math 1140 10/7/13
Form A
Name_
Section _ Show all relevant work. There are 13 problems.
Round your answers to 4 decimal places, unless the answer naturally rounds off to fewer decimals
places. Please do not detach any pages from the exam. Clearly s
Exam 3 Math 1140 11/11/13
Form A
Name_
Section _ Show all relevant work. Round your answers to 4 decimal places. Please do not
detach any pages from the exam. The free response questions are 10 points each; the multiple choice
questions are worth 6 points
Practice for Exam 1.
The formula sheet for Exam 1 is at the Bottom of this document.
Letter Grades
We have the letter grades for a sample of 25 exams given to a population of 1000 students:
Grade = A, B, B, B, C, C, C, D, C, C, D, F, F, C, F, A, C, C, C,