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rovide a printout in which you find the mean and standard deviation for the 75 sizes/mileages of your data set. Also, list your size/mileage for your 10th and your 50th observation below. For all of question 2, treat these values as the mean and standard deviation of the population when answering questions.
Size/Mileage for Observation #10:
Size/Mileage for Observation #50:
a. For this problem, assume that the distribution for all sizes/mileages in the population are normally distributed (may not really be true). Find the proportion of all sizes/mileages that would fall between the sizes/mileages of your 10th and 50th observations. To receive full credit, you should include pictures of the normal curve (labeled with both x and z-values) with the pertinent probabilities shaded in the picture.

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 Ihint• there shrinld he three nails to this