MINITAB的解释不清楚的特点大家发现了吗
You work for a textile manufacturer and want to assess the flammability of a new fabric. Testers hold randomly selected pieces of the fabric over an open flame for a fixed amount of time, and measure the length of the burned portion.
You typically use the 87th percentile as a benchmark for such tests. Create a probability plot to determine if a normal distribution fits your data and to estimate the 87th percentile for the population.
这里的87% 基准是什么意思？这个实验怎么能用来做正态分布与否的例子，请大家指教。
You typically use the 87th percentile as a benchmark for such tests. Create a probability plot to determine if a normal distribution fits your data and to estimate the 87th percentile for the population.
这里的87% 基准是什么意思？这个实验怎么能用来做正态分布与否的例子，请大家指教。
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skyedd (威望:1)
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You typically use the 87th percentile as a benchmark for such tests. Create a probability plot to determine if a normal distribution fits your data and to estimate the 87th percentile for the population
minitab的解释说你的工作是评定一种新的织物的易燃性，测试者把随机选取的这种新的织物放在火上燃烧固定的时间，然后计算燃烧部分的长度
一般来说你应该选取87%的长度作为这种测试的一个基准线，根据你收集的数据（燃烧部分的长度）作一个概率图分析以检测数据是否符合正态分布，然后估计出这些数据的87％水准