NO.PZ202212300100014104
问题如下:
Testing whether there is a change in the money supplygrowth after the shift in policy, using a 0.05 level of significance, weconclude that there is:
选项:
A.sufficient evidence that the money supply growthchanged
B.not enough evidence that the money supply growth isdifferent from zero
C.not enough evidence to indicate that the money supplygrowth changed
解释:
The null hypothesis of no difference in the annualgrowth rate is rejected at the 0.05 level: The calculated test statistic of−8.16188 is outside the bounds of ±2.048.
如果在这个区间内,是不是BC选项都对了呢。