STAT 3010
Project
Wednesday, Jun 18, 2014.
Problem 1: Watch the talk by Malcolm Gladwell on spaghetti sauce (17 minutes) from
the link :
http:/www.ted.com/talks/lang/en/malcolm_gladwell_on_spaghetti_sauce.html
and answer the questions below.
(1) What kind
STAT 3010-130
PRACTICE EXAM 3
SPRING 2014
Problem
The data Set Testscore contains the scores for Midterm and nal of a sample
of students for three dierent consecutive years of Stat3010 : 001, 002, and 003 of
the same University. Here we assume that the sc
STAT 3010-051
PRACTICE EXAM 3
SUMMER 2014
Problem
The data Set Testscore contains the scores for Midterm and nal of a sample
of students for three dierent consecutive years of Stat3010 : 001, 002, and 003 of
the same University. Here we assume that the sc
Chapter 3: Bivariate and Multivariate Data and Distributions: June 11, 2014, B. Nguelifack
1
A multivariate data set consists of observations made simultaneously on two or more variables. One
important special case is that of bivariate data, in which obse
Chapter 3: Bivariate and Multivariate Data and Distributions: June 13, 2014
1
1
Fitting a Line to Bivariate Data (section 3.3)
We rst draw the scatterplot of two quantitative variables for a visual inspection of relationship between
those variables. We th
Chapter 2: Numerical Summary Measures: June 9, 2014
1
Brice Nguelifack Summer 2014
1
Additional Summary Quantities and Plots (Section 2.3 & 2.4 in textbook)
(1) Percentiles The median divides a data set into two equal parts. A ner partition can be obtaine
Homework Solution
7.14.
(a)
A 95% two-sided confidence interval for the true average dye-layer density for all such trees is:
s
x 1.96
n
.163
1.28 1.96
69
1.028 0.03846
.9895,1.0665
1.96s
(b) n
B
2
1.96.16
.025
2
158
A sample size of 158
1. A study is conducted on students-taking a statistics class. Several variables are recorueu
in the survey. Select _a_l_| variables that are quantitative (numerical).
A) Type of car the student owns.
(5) Number of credit hours taken during that semester.