Homework due in recitation
1. This problem is an example of how we can use the population mean
mu and sd sigma to project the distribution of a sample mean and how
to determine confidence intervals for mu from sample data.
Unknown to us, our custom
STT 315 Fall 06 EXAM 2
1. Use z-table to evaluate P(Z in [-1.44, 1.67]).
Ans. P(0 < Z < 1.44) + P(0 < Z < 1.67)
(the region overlaps zero so weve two pieces of P(0 < Z < z) type)
2. Temperatures are normally distributed with mean 98.6 and sd 1
Recitation assignment due 9-21-06.
R.v. X is normally distributed with E X = 23 and Var X = 16.
R.v. Y is normally distributed with E Y = 21 and Var Y = 9.
X, Y are independent r.v.
a. Determine the expectation E W (we may just refer to it as the mean)
CASE STUDY (2) : GROUP #4
EFFECTS OF FINANCIAL PLANNING
STAT640-01 STATISTICAL AND QUANTITATIVE
TABLE OF CONTENTS
Table of Contents
Executive Summary .1
Material and Methods .3-5
Analysis and results .6
Identifying the Hypoth
Running head: BUSINESS STATICS
Institutional affiliation: Michigan State University
Data refers to raw material information which relates to any activity of our interest, or a
Additional Prep for Exam 4 of 11-30-06
Errors will be corrected as discovered.
Version 11-29-06, 8 a.m.
Be sure to consult the handouts and exam 3 as well as lecture materials covering
Hypothesis Testing ideas only (Chapters 78 as treated, but not
NOTE: THIS ASSIGNMENT DEALS WITH THE
POWER CURVE AND METHODS OF DESIGNING A
HYBRID TEST. INFORMATION FROM A
PRELIMINARY SAMPLE DETERMINES A NEEDED
SAMPLE SIZE IN ORDER THAT OUR HYBRID TEST
ACHIEVE A GIVEN ALPHA AND A PARTICULAR
BETA. For a particular t
STT 315 Fall 12
Homework due in YOUR recitation Thursday 8-31-06
The assignment will be scored Full (1), Half (0.5) or zero credit by the grader. Your work
will be judged according to good faith effort, neatness, explicit appeals to known results,
Homework due Thursday, September 7, 2006 in your recitation.
These exercises cover the rules of probability, Venn, tree, Bayes Formula, expectation of
a random variable, variance and standard deviation of a random variable, rules for
STT 315 Exam 1 PREP.
Preparation for Exam 1, to be held Thursday, September 14 in YOUR recitation.
ANY ERRORS IN THIS HANDOUT WILL BE CORRECTED NEXT WEEK IN
LECTURES AND POSTED TO THE WEBSITE. KINDLY NOTIFY ME OF ANY
ERRORS THAT YOU DISCOVER.
I WILL POST
Global Leadership and Management
Table of content
Executive Summary. 3
Material and Methods. 4
Analysis and results. 6