问题 单项选择题

某配件公司长期以来一直是汽车厂的主要配件供货单位,最近汽车厂向供应商提出了供应过程监控证据的要求,配件公司为了满足顾客要求,准备在全公司开始推行统计过程控制。试对下列题目进行分析。

常规控制图的设计思想是( )。

A.先确定犯第一类错误的概率,再看犯第二类错误的概率

B.先确定犯第二类错误的概率,再看犯第一类错误的概率

C.先确定生产方风险,再看使用方风险

D.先确定生产方风险,再看使用方风险

答案

参考答案:A

解析: 常规控制图的设计思想是先确定犯第一类错误的概率,再看犯第二类错误的概率。

多项选择题
填空题

Exercising to music pumps up brain power


If music makes you smarter, and exercise helps brain function, can exercising to music really boost brainpower Some researchers said it can. Volunteers who listened to Vivaldi’s "Four Seasons" while working out on a treadmill did much better on a test of (1) ability than when they exercised without music, a team (2) Ohio State University found.
"Evidence suggests that exercise improves the (3) performance of people with coronary artery (4) ," said psychologist Charles Emery, who led the study.
"And listening to music is (5) to enhance brainpower. We wanted to put the two results together," Emery (6) in a statement.
Writing in the latest issue of the journal Heart & Lung, Emery and (7) said they studied 33 men and women taking (8) in a cardiac rehabilitation program after having bypass (9) , angioplasty or other procedures to treat clogged arteries.
The (10) said they felt better emotionally and mentally after working out (11) or without the music. But their improvement on the (12) fluency test doubled after listening to music on the treadmills.
"Exercise seems to (13) positive changes in the nervous system, and these changes may have a (14) effect on cognitive ability," Emery said.
"Listening to music may (15) cognitive function through different pathways in the brain. The combination of music (16) exercise may stimulate and increase cognitive arousal (17) helping to organize cognitive output."
Emery said he now wanted to (18) people using music of their own choice. "We used the ’Four Seasons’ because of its (19) tempo and positive effects on medical patients in previous (20) ," Emery said. "But given the range of music preferences among patients, it’s especially important to evaluate the influence of other types of music on cognitive outcomes.\