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A communication channel is being monitored by recording
Chapter 6, Problem 114SE(choose chapter or problem)
A communication channel is being monitored by recording the number of errors in a string of 1000 bits. Data for 20 of these strings follow: Read data across and down
(a) Construct a stem-and-leaf plot of the data.
(b) Find the sample average and standard deviation.
(c) Construct a time series plot of the data. Is there evidence that there was an increase or decrease in the number of errors in a string? Explain.
Questions & Answers
QUESTION:
A communication channel is being monitored by recording the number of errors in a string of 1000 bits. Data for 20 of these strings follow: Read data across and down
(a) Construct a stem-and-leaf plot of the data.
(b) Find the sample average and standard deviation.
(c) Construct a time series plot of the data. Is there evidence that there was an increase or decrease in the number of errors in a string? Explain.
ANSWER:Solution 114SE
Step1 of 4:
From the given problem we have a data set:
3 |
1 |
0 |
1 |
3 |
2 |
4 |
1 |
3 |
1 |
1 |
1 |
2 |
3 |
3 |
2 |
0 |
2 |
0 |
1 |
Here our goal is:
a). We need to construct the stem and leaf diagram.
b). We need to find the sample average and standard deviation.
c). We need to construct time series plot.
Step2 of 4:
a).
The stem and leaf diagram is obtained from MINITAB and the steps are given below:
Enter the given data in MINITAB
Go to graphs
Choose Stem and leaf
Import data to series
Then press ok.