Macro-Econ Study Guide
Part 1: In closed laissez faire market Aggregate expenditures (which equals
income or GDP) equals household consumption plus Investment. There for with a
reduction in (I) aggregate expenditures and GDP are decreased. The decrease
Stat 272 Bestrashniy
Tuesday, Sept 28
Names (Teams of 2 or 3) _CHARLIE BAHNSON
This quiz is open-book and open-RStudio. You may want to use chapter1.R when answering these questions.
Example 1.7: Species by area.
1. Explain how youd conclu
Stat 272 Roback
CHARLIE BAHNSON-STAT 272
Chapter 0: What is a Statistical Model?
(Due Monday, February 16)
Conceptual Exercise 0.5: Scooping ice cream.
Complete parts (a)-(d).
A. Observational units are the nutrition experts
# Porsche price vs. mileage
library(Stat2Data) # be sure you install this package first
Porsche.lm1 = lm(Price ~ Mileage)
# Information needed
Journal of Internal Medicine 2003; 254: 555563
Waist circumference, waisthip ratio and body mass index
and their correlation with cardiovascular disease risk factors
in Australian adults
M. DALTON1, A. J. CAMERON1, P. Z. ZIMMET1, J. E. SHAW1, D. JOLLEY2,
par(mfrow=c(1,1) #makes this into a one by one window, not 2 by 2
#example 1.6= number of MDs in metro area vs number of hospitals
MetroHealth.df = MetroHealth83[,c(1,2,4)] #extract 3 variables
arbuthnot <- read.csv("~/Econ 263 Shared/arbuthnot.csv")
arbuthnot <- transform(arbuthnot, total = boys + girls)
xyplot(total ~ year, data = arbuthnot, type = "l")
Do you observ
Challenge! (or homework if we run out
You can assign lots of different types of things to objects. The
command xyplot(y~x) will plot the values in x on the x axis
against the values in y on the y axis. Using this command create a
plot of the valu
Condence intervals and p values
Introduction Kaplan does not give you enough on tvalues, pvalues, and condence intervals. Other books
I thought to assign give you to much. So, here I have prepared a handout to help ll in the gaps. it is meant
to be intera
November 22, 2015
What constitutes an observation in this data set? How many
observations are in this data set? How many time periods? What is the
entity in this data set?
There are 765 observations in this data
Super Stats Squad
Nathalie Kenny, Sevinc Dundar, Logan Cloutier
There are 20,000 cases and 9 variables in this data set.
genhlth - categorical
exerany - categorical
hlthplan - categorical
(a) > seq(5;8)togive 5 6 7 8
[B] Use a comma instead of a semi-colon to sep- arate arguments: seq(5,8).
(b) > cos 1.5 to calculate the cosine of 1.5 radians
Use parenthesis before and after 1.5
(c) > 3 + 5 = x to make x take the val
1. Explanatory Variable: Sex Response Variable: Salary
2. EV: years of experience RV: salary
3. EV: race RV: promotion
4. EV: age RV: laid of
There is an interaction term be
Chapters 11, 13
c) 90 to 110
d) 81 to 119
Problem 11.21(NOT part 1 or 2)
Plot 2 is correct.
b) [C] 34%
c) [A] 14%
d) [B] 2
e) [D] 12
d) The lack of upper and lower boundaries indicates the limitations of the da
1. a) Yes. First, these give the equilibrium values for price and quantity.
1350.45 P=63+0.27 P
13563=0.27 P+0.45 P
Q=1350.45(100) and Q=63+0.27(100)
Second, at the equilibrium, they also have the elasticities that are given.
Friday, November 18, 2011
Prof. A. D. Becker
I pledge my honor that on this exam I neither gave nor received assistance and that I saw no dishonest
c Check the box if you have left the pledge un