b. ❑Assuming the distribution of the sizes/mileages are normal, use the mean and standard deviation you found above to locate the 6.3′ percentile in the size/mileage distribution. To receive full credit, you show as much work as possible.
c. Suppose you take a future sample of 100 sizes/mileages from your population. Describe the sampling distribution for the x-bar value that you would find. (hint: there should be three parts to this answer)
d. Use the sampling distribution to find the probability that the sample mean from that future sample would be greater than the size/mileage for Observation #50. To receive full credit, you should include pictures of the normal curve (labeled with both x-bar and z-values) with the pertinent probabilities shaded in the picture.
3. Use two of the techniques discussed in class to asse he normality of the Price distribution from your data set. ybu can choose the two techniques you use. Just make sure you show us enough information (including printouts) to check your work.