1000 customers' service times was recorded. Sixty of these are shown here. 3.6 1.2 1.4 1.4 0.2 0.3 2.2 1.6 2.2 1.0 0.6 0.0 1.1 2.6 1.0 1.6 1.4 2.0 3.2 1.7 1.0 1.7 0.6 0.5 0.5 1.0 0.4 0.0 1.1 1.0 0.3 0.1 4.6 1.1 0.5 0.5 1.3 1.4 0.7 0.4 1.0 0.9 1.3 5.2 1.8 2.9 1.8 0.3 0.7 0.7 1.7 0.7 0.2 0.6 1.8 1.2 1.4 2.4 1.1 1.7 3.1 0.6 1.1 (a) Construct a stem and leaf plot for the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) 0 0 1 1 2 2 3 3 4 4 (b) What fraction of the service times are less than or equal to 1 minute? chain wanted (c) What is the smallest of the 60 measurements? min customers. in the sur
1000 customers' service times was recorded. Sixty of these are shown here. 3.6 1.2 1.4 1.4 0.2 0.3 2.2 1.6 2.2 1.0 0.6 0.0 1.1 2.6 1.0 1.6 1.4 2.0 3.2 1.7 1.0 1.7 0.6 0.5 0.5 1.0 0.4 0.0 1.1 1.0 0.3 0.1 4.6 1.1 0.5 0.5 1.3 1.4 0.7 0.4 1.0 0.9 1.3 5.2 1.8 2.9 1.8 0.3 0.7 0.7 1.7 0.7 0.2 0.6 1.8 1.2 1.4 2.4 1.1 1.7 3.1 0.6 1.1 (a) Construct a stem and leaf plot for the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.) 0 0 1 1 2 2 3 3 4 4 (b) What fraction of the service times are less than or equal to 1 minute? chain wanted (c) What is the smallest of the 60 measurements? min customers. in the sur
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:To decide on the number of service counters needed for stores to be built in the future, a supermarket chain wanted to obtain information on the length of time (in minutes) required to service customers. To find the distribution of customer service times, a sample of
1000 customers' service times was recorded. Sixty of these are shown here.
3.6 1.2 1.4 0.2 0.3 2.2
0.8 1.1 2.6 1.0 1.6 1.4 2.0
1.7 0.6 0.5 1.0 0.4 0.0 1.1
4.6 1.1 0.5 1.3 1.4 0.7 0.4
0.3 0.7 5.2 1.8 2.9 1.8
1.6 2.2 1.0 0.8
3.2 1.7 1.0
1.0 0.3 0.1
1.0 0.9 1.3
0.7 1.7 0.7 0.2
0.6 1.8 1.2 1.4 2.4 1.1 1.7 3.1 0.6 1.1
(a) Construct a stem and leaf plot for the data. (Enter numbers from smallest to largest separated by spaces. Enter NONE for stems with no values.)
0
0
1
1
2
2
3
3
4
4
(b) What fraction of the service times are less than or equal to 1 minute?
(c) What is the smallest of the 60 measurements?
min
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