3. A doctor's office staff studied the waiting times for patients who arrive at the office with a request for emergency service. The following data with waiting times in minutes were collected over a one- month period. 25 10 12 4 4 5 17 11 8 9 8 12 21 6 8 7 13 18 3 Use classes of 0-4, 5-9, 10-14, 15-19, and 20-24 in the following: a. Show the frequency distribution. b. Show the relative frequency distribution. c. Show the cumulative frequency distribution. d. Show the cumulative relative frequency distribution. e. What proportion of patients needing emergency service wait nine minutes or less?
3. A doctor's office staff studied the waiting times for patients who arrive at the office with a request for emergency service. The following data with waiting times in minutes were collected over a one- month period. 25 10 12 4 4 5 17 11 8 9 8 12 21 6 8 7 13 18 3 Use classes of 0-4, 5-9, 10-14, 15-19, and 20-24 in the following: a. Show the frequency distribution. b. Show the relative frequency distribution. c. Show the cumulative frequency distribution. d. Show the cumulative relative frequency distribution. e. What proportion of patients needing emergency service wait nine minutes or less?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:3. A doctor's office staff studied the waiting times for patients who arrive at the office with a
request for emergency service. The following data with waiting times in minutes were collected
over a one- month period.
25 10 12 4 4 5 17 11 8 9 8 12 21 6 87 13 18 3
Use classes of 0– 4, 5– 9, 10-14, 15-19, and 20-24 in the following:
a. Show the frequency distribution.
b. Show the relative frequency distribution.
c. Show the cumulative frequency distribution.
d. Show the cumulative relative frequency distribution.
e. What proportion of patients needing emergency service wait nine minutes or less?
4. Ch. 2 Stem and leaf problem
Most major ski resorts offer family programs that provide ski and snowboarding instruction for
children. The typical classes provide four to six hours on the snow with a certified instructor. The
daily rate for a group lesson at 15 ski resorts follows ( The Wall Street Journal, January 20, 2006).
Daily Rate
$ 137
Resort
Location
Beaver Creek
Colorado
Deer Valley
Utah
115
Diamond Peak
California
95
Heavenly
Hunter
California
145
New York
California
79
Mammoth
Mount Sunapee
Mount Bachelor
111
New Hampshire
Oregon
96
83
Okemo
Vermont
86
Park City
Utah
145
Butternut
Massachusetts
75
Steamboat
Colorado
98
Stowe
Vermont
104
Sugar Bowl
Whistler- Blackcomb British Columbia
California
100
104
a) Draw a stem and leaf for the daily rate (leaf unit = 1.0)
b) Interpret the stem and leaf (i.e. what is range of the values ..min?? Max?? Where do the
majority of the values fall?)
Helpful hints on how to draw stem and leaf and interpret are posted under Ch. 2 Module
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