C5 Consider the analysis in Computer Exercise C11 in Chapter 4 using the data in HTV.RAW, where educ is the dependent variable in a regression. (i) How many different values are taken on by educ in the sample? Does educ have a continuous distribution? (ii) Plot a histogram of educ with a normal distribution overlay. Does the distribution of educ appear anything close to normal? (iii) Which of the CLM assumptions seems clearly violated in the model educ 5 0 1motheduc 2 fathedu  3abl  4abil How does this violation change the statistical inference procedures carried out in Computer Exercise C11 in Chapter 4?