Abstract Introduction: Most of the staff engaged in the abrasives industry are from science and engineering. They are good at rational thinking. They value data more on analytical issues. The numbers often give people an accurate and "honest" impression, but in fact, even in life. We are often deceived by numbers in our work. This...
Introduction: Most of the staff engaged in the abrasives industry are from science and engineering. They are good at rational thinking. They will naturally value data more in analyzing problems. The numbers often give people an accurate and "honest" impression. But in fact, we are often deceived by numbers in our lives and even at work. This list of brain-burning "digital scams" has compiled 10 common digital scams that are worth learning. 1. The source of the numbers is unclear. Regardless of whether it is industry news or technical articles, all who do not give the exact source of the numbers are hooligans. The following statements should be taken care of: According to the investigation, some research shows that experts say that scientists from XX said .... Example: "According to the investigation, the safety performance of our company's grinding wheel is five times better than Other manufacturers. â€
2. Cover the gap with the average. To give the freshest example: "In June 2017, the average price of housing sales in Zhengzhou was 7921 yuan/flat."
3. Cover the scale with a percentage. Example: “Our company's 50% presses are the latest models.†But the reality is: the company has only two presses in total.
4. Stealing the concept. For example: “There is a proposal in the company that we should build the factory into a remote mountainous area, so the cost is lower. The production cost of the product in the city is 20 yuan, while in the remote mountain area it is only 5 yuan.†However, the 20 yuan here refers to the production. All the cost of the product; but what he used to compare is only a 5 yuan worker cost. We know that if you build a factory in a remote mountain area, you also need to consider the cost of product transportation, as well as the transportation and accommodation costs of employees.
5. The definition is not uniform. For example: “Several companies have said that they have the highest market share.†However, the definitions of “occupation rate†are not consistent: some companies use “average market shareâ€, and some companies use "The highest share of a single market", some companies use "the market share of several years."
6. Ignore measurement errors for comparison. Example: "A manufacturer's diamond saw blade can cut 101 stone plates, and B manufacturers' saw blades can only cut 99 pieces, so A manufacturers' saw blades are better than B manufacturers." But in fact, any measurement and actual operation There are errors, and the resulting value should be added to an interval, such as ±3%. In this way, the range of saw blade durability between A and B manufacturers overlaps, so it is impossible to determine who is better than anyone.
7. The difference is too small to have practical significance. For example: “A large-scale product quality test results, the qualified rate of product quality produced by male employees is 99.1%, and the average qualified rate of product quality produced by female employees is 99.2%.†Even if the difference is statistically significant, due to the difference Too small does not have any practical significance. A difference can only be called when the difference makes sense.
8. The reference object is unclear. For example: “The safety performance of this six-face press is increased by 26%.†Who is this compared with, if there is no reference object, the digital upgrade is no more meaningful?
9. Combine different things together. For example, 12: "The survey results show that the majority - 78% of the staff are against the company." The data is to add to the company's irrelevant complaints, insignificant grievances, this is not the same thing as "against the company" .
10. Transforming the base makes people feel illusory. For example: "This wheel has a 50% discount, and you can get a 20% discount on your face." This will make you think that there is a 70% discount, but in fact the discount is only 60%. Because the latter 20% discount is calculated using the price after 50% off.
Numbers are just a tool, and the tools themselves don't deceive people, but people with ulterior motives use the "digital" tool to deceive others. Therefore, we must learn to recognize these digital traps in order to better understand the reality and rational analysis.
There is a saying in the West: Don't hate the player, hate the game (don't hate the player, hate the game). China's superhard materials network Xiaobian believes that only our abrasives industry creates an environment that encourages honesty, in order to fundamentally solve the problem of being "digital" deceit.
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