摘要: The validity of the result for a linear regression model requires the following assumptions:The exist[阅读全文:]
摘要: Nonparametric methods were most suitable when researchers have little knowledge about the population[阅读全文:]
摘要: ANOVA is commonly used to compare more than two means among different groups,the principle is to divi[阅读全文:]
摘要: T-test is used to access whether the means of two groups are statistically different in a continuous[阅读全文:]
摘要: Type 1 error :when Ho is true ,a hypothesis test conclusion rejects Ho and accepets H1 due to samplin[阅读全文:]
摘要: Step one :to establish the null hypothesis Ho,and the alternative hypothesis H1Step two :set up a sig[阅读全文:]
摘要: Hypothesis test is based on the think of reduction to absurdity.That means a small probability event[阅读全文:]
摘要: Parameter estimation involves the use of sample statistic to estimate population parameter.It consist[阅读全文:]
摘要: Sampling error arises when a population parameter is estimated by just one sample from the population[阅读全文:]
摘要: Normal distribution is a fundamental and important distribution of a continuous random variable,it is[阅读全文:]
