Case 2.1
Server Downtime
1. Frequency Distribution for Server Downtime
Problem Experienced
Lockups
Manual Re-start
Memory Errors
Slow Startup
Weekly Virus Scan
N=
Count
6
1
10
1
4
22
2. Bar Chart for Server Downtime
3. Histogram of Server Downtime Minutes
Case 3.2
National Call Center
1. Descriptive Statistics: Current Amount Due v. Gender of Caller
Caller
Variable
Current Amount Due
Gender
Female
Male
Mean
74.8
50.1
Median
68.7
39.4
2. Descriptive Statistics: Current Amount Due v. Gender of Account
Holder
Mercedes Mello
Module 2 Homework Solutions
3-20 Japoli Bakery
Using Minitab Statistical Analysis Tools, the following table was constructed
Bread Category
White
Wheat
Multigrain
Black
Cinnamon Raisin
Sour Dough French
Light Oat
Mean
599.8
530.4
470.4
383.
Thomas Healy
QSO 530
Homework 3-4
Prof Migdad Selimovic
Homework Question 2.5:
a.) In order to determine the number of classes required, we must first frequency distribution
table:
The 2^k greater than or equal to n rule states the lowest class:
b. Develo
Thomas Healy
QSO 530
Homework 2-3
Prof Migdad Selimovic
3.1 A random sample of 15 articles in Fortune revealed the following word counts per article. Calculate
the mean, median, first quartile and third quartile for the sample data.
Mean:
5176+4132+5002+6
Thomas Healy
QSO 530
Homework 1-2
Prof Migdad Selimovic
1-25. Suppose you are asked to survey students at your university to determine if they are satisfied with
their food service choices on campus. What types of biases must you guard against in collecti