3/19/2009 MATH 271 Name: . giiviHZZ !
Dr. Lunsford Midterm Exam 100 Points Possible
Please show all of your work on this exam paper. To achieve the maximal amount of credit, please
show all calculator
Math 1070 - Spring '11 - Midterm 2
Name: _ Date: _
1. In a test of hypotheses, the P-value is
A) the probability, assuming the null hypothesis is true, that the test statistic will take a
value at lea
Atul N Roy
Page 1
Atul N Roy
Page 2
Atul N Roy
Page 3
7.The following data shows the time (in minutes) taken by the 9 employees of a
company to finish a job satisfaction survey.
17, 38, 46, 49,
Created by Atul N Roy Montgomery College
Created by Atul N Roy Montgomery College
Created by Atul N Roy Montgomery College
Created by Atul N Roy Montgomery College
Comparing two populations
T
AUTHOR: ATUL ROY
We are going to look at comparison of two population means. We shall do very basic level calculations,
to understand the idea because in practice mostly su
Assignment 4:
It is a cumulative review of the Units 7-10
1. To estimate the mean time that the customers spend in a privileged
lounge at an airport, the time for 35 randomly selected passengers is
mo
Unit 9 Practice Problems
1.
A slacks manufacturer is deciding whether to purchase a new method for bonding seams
together. Before purchasing a new method that bonds, or glues, the seams together,
the
Practice Exercises for the Unit 7
1. A simple random sample of 40 applications is monitored and for these
40 applications, the sample mean is 19 minutes. Take it given that the
standard deviation for
36-201 Spring 1999
Solutions to Homework 6
1. Moore, 5.18 (p.300-301).
(a) The total number of Alaska Airlines delayed fights is 501 while the their total number of flights
is 3775. So 501/3775 100 %
Unit 8 Practice Problems
The following are additional practice problems for the unit 8.
1. The manufacturer of a mens clothing would like to test
if the mean height of the adult males is now different
Examples
1. The mean daily sales per sales associate in a large electronic
chain is $1158.00. To test if a new incentive will result in an
increase of this average, a simple random sample of 35
associ
Assignment 3
1. A Cornell University study of wage differentials between men and women reported that
one of the reasons wages of men are higher than the wages of women is that the men tend
to have mor
Lesson 4
Part 1
Relationships between
two numerical
variables
1
Correlation Coefficient
The correlation coefficient is a summary statistic
that describes the linear relationship between
two numerical
Normal Probability Distribution
Chart prepared by the NY State Education Department
A chart, such as that seen above, is often used when dealing with normal distribution questions. Understand
that thi