Refer to the accompanying data set and use the 25 home voltage measurements to construct a...
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 124.7 volts, and use a class width of 0.2 volt. Does the result appear to have a normaldistribution? Why or why not?
Complete the frequency distribution below.
|
Voltage (volts) |
Frequency |
|
124.7− |
|
|
− |
|
|
− |
|
|
− |
|
|
− |
Voltages measurements from a home
Day Home (volts)
1 125.0
2 125.3
3 125.1
4 125.4
5 125.4
6 124.7
7 125.1
8 124.9
9 125.2
10 125.4
11 125.1
12 124.7
13 125.1
14 125.0
15 125.4
16 125.3
17 124.7
18 125.0
19 125.1
20 125.5
21 125.3
22 125.1
23 125.0
24 124.9
25 125.1
Homework Answers
| Volatage | Frequency |
| 124.7 - 124.8 | 3 |
| 124.9 - 125.0 | 6 |
| 125.1 - 125.2 | 8 |
| 125.3 - 125.4 | 7 |
| 125.5 - 125.6 | 1 |
Yes, the result appear to have a normaldistribution
because the distribution is fairly symmetric.
Add Answer to:
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