Refer to Exercise 3.43.
a. Find the median and IQR.
b. Find the inner and outer fences. Are there any outliers?
c. Draw a boxplot of the data.
Exercise 3.43
Draw a stem-and-leaf plot of the data in Exercise 3.42. The stems should include (from highest to lowest) 71, 70, 69, …. Does the shape of the stem-and-leaf display confirm your judgment in part (d) of Exercise 3.42?
Exercise 3.42
Production records for an automobile manufacturer show the following figures for production per shift (maximum production is 720 cars per shift):
688 711 625 701 688 667 694 630 547 703 688 697 703
656 677 700 702 688 691 664 688 679 708 699 667 703
a. Would the mode be a useful summary statistic for these data?
b. Find the median.
c. Find the mean.
d. What does the relationship between the mean and median indicate about the shape of the data?
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