选项c的正确表达是什么

问题如下：

At a 0.01 level of significance, Jones should conclude that:

选项：

the mean net profit margin is 0.5987 percent.

the variation of the fixed asset turnover explains the variation of the natural

log of the net profit margin.

a change in the fixed asset turnover from three to four times is likely to

result in a change in the net profit margin of 0.5987 percent.

解释：

B is correct. TTe p-value corresponding to the slope is less than 0.01, so we reject the null hypothesis of a zero slope, concluding that the ffxed asset turnover explains the natural log of the net profft margin.