NO.PZ202106160300003904
问题如下：
Testing whether there is a change in the money supply growth after the shift in policy, using a 0.05 level of significance, we conclude that there is:
选项：
A.sufficient evidence that the money supply growth changed B.not enough evidence that the money supply growth is different from zero C.not enough evidence to indicate that the money supply growth changed解释：
A is correct. The null hypothesis of no difference in the annual growth rate is rejected at the 0.05 level: The calculated test statistic of-8.16188 is outside the bounds of ±2.048.
A is correct. The null hypothesis of no difference in the annual growth rate is rejected at the 0.05 level: The calculated test statistic of-8.16188 is outside the bounds of ±2.048.
1、因为b1=-5.13912，只要不等于零，就说明显著。我这么理解对吗？为什么答案还要算t统计量呢？
2、题干中SHIFT coefficient和intercept coefficient是否就是b1和b0？
