问题如下:
Suppose that for a linear regression, an estimation of slope is stated as having a one-sided p-value of 0.04. What does this mean?
选项:
解释:
The p-value tells us the “probability of observing a test statistic that is more extreme than the one computed from the observed data when the null hypothesis is true.” In other words, if the estimate of the slope is true, then in a randomized trial the probability of getting a larger new slope estimate is 4%.Assuming a normal distribution, this will correspond to the value of x that solves the following equation:
1 - Φ(x) = 0.04
Using the excel function NORMSINV gives x = 1.75.
请问这道题是匹配哪个section的知识点啊