生产某种滚珠,要求直径x为15.0±1.0mm,测得50个滚珠的直径如下表。试用直方图对生产过程进行统计分析。(25分)
|
J
I |
1 |
2 |
3 |
4 |
5 |
6 |
7 |
8 |
9 |
10 |
|
1 |
15.0 |
15.8 |
15.2 |
15.1 |
15.8 |
14.7 |
14.8 |
15.5 |
15.6 |
15.3 |
|
2 |
15.1 |
15.3 |
15.0 |
15.6 |
15.7 |
14.8 |
14.5 |
14.1 |
14.9 |
14.9 |
|
3 |
15.2 |
15.0 |
15.3 |
15.6 |
15.1 |
14.9 |
14.2 |
14.6 |
15.8 |
15.2 |
|
4 |
14.6 |
15.2 |
15.0 |
14.9 |
14.8 |
14.5 |
15.1 |
15.5 |
15.5 |
15.5 |
|
5 |
15.1 |
15.0 |
15.3 |
14.7 |
14.5 |
15.5 |
15.0 |
14.7 |
14.6 |
14.2 |
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