Lily Le _ QA 233-002 _ Fall 09
Practice for Exam 2 (Chapter 5, 6, and 7)
Chapter 5
1. For the following probability distribution:
x
0
1
2
3
4
5
6
7
8
9
10
f(x)
0.01
0.02
0.10
0.35
0.20
0.11
0.08
0.05
0.04
0.03
0.01
a.
Determine E(x).
E (x) = xf(x) = 4.14
PracticeforExam3
1. Arandomsampleof100creditsalesinadepartmentstoreshowedanaveragesaleof $120.00.Frompastdata,itisknownthatthestandarddeviationofthepopulationis$40.00. a. Determinethestandarderrorofthemean. b. Witha0.95probability,determinethemarginoferro
Practice Test 3 Bus 2023 Directions: For each question find the answer that is the best solution provided. There is only one correct answer. 1. A random variable that can assume only a finite number of values is referred to as a(n) a. infinite sequence b.
CHAPTER 1
(Why study Money, Banking and Financial Markets?)
1- Money is defined as: A. bills of exchange. B. anything that is generally accepted in payment for goods and services or in the repayment of debt. C. a riskless repository of spending power. D.
Quick review of FINC 318
1. What is present value? How much you get now
What is future value? How much what you get now grows to when compounded at a
given rate
What is interest rate? Exchange rate between earlier money and later money
2. Suppose you inve
Name: _ ID number: _
FIN 406 QUIZ. 1
October 3, 2002
Instructions: Circle the best answer for each question in the exam. There are 45 questions and each question is worth 1 point. The exam is a closed book and closed notes exam.
1
1.
Why are derivatives p
Risk and Return: Past and Prologue
CHAPTER OVERVIEW
This chapter introduces the concept of risk and return. That is, rational investors potentially will accept more risk if the expected returns of the investment are commensurably higher. Risk preference:
The Balance Sheet
Components of the Balance Sheet
As the name implies, a balance sheet is a list of asset, liability and equity balances. The totals for these balances satisfy the balance sheet identity: assets = liabilities + net worth (see the table bel
Central bank'sbalancesheet
Thestatementoftheassetsandliabilitiesofthecentralbank.
Currencytodeposit ratio
Theratioofpubliclyheldcurrencytodemanddepositsheldatcommercialbanks.
Depositexpansion multiplier
Theformulafortheincreaseincommercialbankdepositsfoll
Statistical Methods in Business: Answer to Optional Problems module 1 A1. The AMI Company has two assembly lines in its Kansas City plant. Line A produces an average of 325 units per day with a standard deviation equal to 10 units. Line B produces an aver
CHAPTER 10COMPARISONS INVOLVING MEANS, EXPERIMENTAL DESIGN, AND ANALYSIS OF VARIANCE
1. Maxforce, Inc. manufactures racquetball racquets by two different manufacturing processes (A and B). Because the management of this company is interested in estimating
Lily Le _ QA 233 -002 _ Fall 09
HOMEWORK CHAPTER 3 Question 9
a. 422 b. 380 c. i = (85/100) x 15 = 13 so the 85th percentile is 690 d. The data above suggests that 85% of users use 690 or less minutes and the
company plan allows 750 minutes. Therefore, th
1. Given below are seven observations collected in a regression study on two variables, x (independent
variable) and y (dependent variable). x 2 3 6 7 8 7 9 a. b. c. d. y 12 9 8 7 6 5 2
Develop the least squares estimated regression equation. At 95% confi
P ractice for Exam 2(Chapter 5, 6, and 7)
Chapter 5
1. For the following probability distribution:
x 0 1 2 3 4 5 6 7 8 9 10 a. b.
f( x) 0.01 0.02 0.10 0.35 0.20 0.11 0.08 0.05 0.04 0.03 0.01
Determine E( x). Determine the variance and the standard deviati
Statistics The art and science of collecting, analyzing, presenting, and interpreting data. Data The facts and figures collected, analyzed, and summarized for presentation and interpretation. Data set All the data collected in a particular study. Elements
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