NAME:
MTH 207 02
HOMEWORK 1
DESCRIBING QUALITATIVE DATA
This homework covers material found in Section 2.1 of your book.
1. Gather at least 20 measurements of some variable which yields qualitative data. There
should be at least 3 possible classes for the
Project #2, Health Vitals
Jill Foster, Kevin Freier, Mia Karam, Cassie Quick
Contingency Table Summary: Males seem to be more heavy-set then the women.
Segmented Bar Graph Summary: No males are found to be underweight, but there are more
overweight men th
1. Suppose the following spinner is to be used for a carnival game during a UD Final Four
celebration, and the proceeds will be donated to a local homeless shelter. You will win
$10.00 if the spinner stops on green, but agree to pay $5.00 if it stops on a
MTH 207
Probability Problems
1.
F).
Suppose that P(E) = 0.76, P(F) = 0.45, and P(E and F) = 0.32. Find P(E or
2.
Suppose that P(E) = 0.36, P(F) = 0.12, and E and F are mutually exclusive
events. Find P(E or F).
3.
Suppose that events E and F are independe
Crime Rates by State. The following data represent the crime rate (crimes per 100,000
population) for each state in 1998.
State
Rate
Alabama
Alaska
Arizona
Arkansas
California
Colorado
Connecticut
Delaware
D.C.
Florida
Georgia
Hawaii
Idaho
Illinois
Indian
A random sample of traffic stops in the Dayton area reveals that 35.5% (11) of the 31 drivers
who received speeding tickets were speeding over 20 mph above the speed limit. Construct a
95% Confidence Interval for all drivers in America who excessively spe
MTH 207
TEST 1b
SOLUTIONS
1. Describe what it means for a variable to be quantitative and give an example.
Solution. A quantitative variable describes a characteristic that has a natural numeric scale. An example
would be height.
2. Is a random sample mor
MTH 207
TEST 1a
SOLUTIONS
1. Describe what it means for a variable to be qualitative and give an example.
Solution. A qualitative variable describes a non-numeric characteristic. It does not occur on any natural
numeric scale. An example would be color.
2
MTH 207
TEST 1b
SOLUTIONS
1. State the characteristic that makes a random variable discrete.
Solution. There are steps or spaces between the possible values of random variable.
2. What two properties must a function p(x) satisfy in order to be a probabili
MTH 207
Quiz 1a
Solutions
1. Explain the dierence between descriptive and inferential statistics.
Solution. In descriptive statistics some characteristic of a sample or population is described. The results of a
study are organized and reported. In inferen
MTH 207
TEST 3a
SOLUTIONS
1. What probability distribution does a sampling distribution approximate for large samples?
Solution. The normal distribution.
2. What are the mean and standard deviation of the sampling distribution of means of samples of size
NAME:
MTH 207 02
HOMEWORK 5
Numerical Measurements of Relative Standing
This homework covers material found in Section 2.7 of your book.
1. Open the data set dataset1.sav, which you can find under data on my website. Use
SPSS to find the values of the fol
NAME:
MTH 207 02
HOMEWORK 2
GRAPHICAL METHODS FOR DESCRIBING SETS OF QUANTITATIVE
DATA
This homework covers material found in Section 2.2 of your book.
1.
2.
3.
4.
Open the data set airnoshows.sav, which you can find under data on my web site.
Create a st
NAME:
MTH 207 02
HOMEWORK 4
Numerical Measurements of Variability
This homework covers material found in Section 2.5 of your book.
1. Open the data set dataset1.sav, which you can find under data on my web.
a. Use SPSS to draw a histogram of the data. Cop
NAME:
MTH 207 02
HOMEWORK 3
Numerical Measurements of Central Tendency
This homework covers material found in Section 2.4 of your book.
1. Open the data set SLI.sav, which you can find under data on my web site or on the disk
that came with your book.
a.
Cassie Quick, Kevin Freier, Mia Karam, Jill Foster
# of Strokes Over Par for the Whole Course (All Days)
0 to 5
5 to 10
10 to 15
15 to 20
20 to 25
Dales 2013
4
2
2
0
Dales 2014
0
1
5
0
The Grove
2013
1
4
4
1
The Grove
2014
0
5
6
2
5
12
17
3
Dales 2013
Dal