Mean duration of stuttering, in seconds, was recorded for 9 subjects whose disability had been classified as mild, moderate, or severe.
![1193_Mean duration of stuttering.png](https://secure.tutorsglobe.com/CMSImages/1193_Mean duration of stuttering.png)
a. Present the data as separate columns of quantitative responses for each of the various explanatory values.
b. If ANOVA is to be used to make a comparison, how many degrees of freedom will the F statistic have in the numerator and in the denominator?