Refer to the accompanying data set and use the 25 home voltage measurements to construct a frequency distribution with five classes. Begin with a lower class limit of 120.8 volts, and use a class width of 0.2 volt. Does the result appear to have a normal distribution? Why or why not? Click the icon to view the data. Complete the frequency distribution below. Voltage (volts) Frequency 120.8- (Type integers or decimals rounded to the nearest tenth as needed.) Day 1 2 3 4 5 6 7 Voltage Measurements From a Home Home (volts) Day 121.5 22 121.3 23 120.9 24 121.0 25 121.3 121.7 121.5 Home (volts) Day 121.0 15 121.2 16 121.4 17 121.3 18 121.2 19 121.2 20 21 Home (volts) Day 121.1 8 121.5 9 121.2 10 121.5 11 121.6 12 120.8 13 121.2 14 121.1 Home Full (volts) data 121.2 set 121.1 121.0 121.2

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Refer to the accompanying data set and use the 25 home voltage measurements to construct a frequency distribution
with five classes. Begin with a lower class limit of 120.8 volts, and use a class width of 0.2 volt. Does the result appear to
have a normal distribution? Why or why not?
Click the icon to view the data.
Complete the frequency distribution below.
Voltage (volts) Frequency
120.8-
(Type integers or decimals rounded to the nearest tenth as needed.)
Voltage Measurements From a Home
Home
Home
(volts) Day (volts) Day
121.0 15
121.5 22
121.2 16
121.3 23
121.4 17
120.9 24
121.3 18
121.0 25
121.2 19
121.3
121.2
20 121.7
21 121.5
Home
(volts) Day
121.1 8
121.5 9
121.2 10
121.5 11
12
13
121.2 14 121.1
Day
1
2
3
4
5 121.6
6
120.8
7
Home Full
(volts) data
121.2 set
121.1
121.0
121.2
Transcribed Image Text:Refer to the accompanying data set and use the 25 home voltage measurements to construct a frequency distribution with five classes. Begin with a lower class limit of 120.8 volts, and use a class width of 0.2 volt. Does the result appear to have a normal distribution? Why or why not? Click the icon to view the data. Complete the frequency distribution below. Voltage (volts) Frequency 120.8- (Type integers or decimals rounded to the nearest tenth as needed.) Voltage Measurements From a Home Home Home (volts) Day (volts) Day 121.0 15 121.5 22 121.2 16 121.3 23 121.4 17 120.9 24 121.3 18 121.0 25 121.2 19 121.3 121.2 20 121.7 21 121.5 Home (volts) Day 121.1 8 121.5 9 121.2 10 121.5 11 12 13 121.2 14 121.1 Day 1 2 3 4 5 121.6 6 120.8 7 Home Full (volts) data 121.2 set 121.1 121.0 121.2
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