Question

6.1-8. A small part for an automobile rearview mirror was produced on two different punch presses. In order to describe the distribution of the weights of those parts, a random sample was selected, and each piece was weighed in grams, resulting in the following data set: 3.968 3.534 4.032 3.912 3.572 4.014 3.682 3.608 3.669 3.705 4.023 3.588 3.945 3.871 3.744 3.711 3.645 3.977 3.888 3.948 3.551 3.796 3.657 3.667 3.799 4.010 3.704 3.642 3.681 3.554 4.025 4.079 3.621 3.575 3.714 4.017 4.082 3.660 3.692 3.905 3.977 3.961 3.948 3.994 3.958 3.860 3.965 3.592 3.681 3.861 3.662 3.995 4.010 3.999 3.993 4.004 3.700 4.008 3.627 3.970 3.647 3.847 3.628 3.646 3.674 3.601 4.029 3.603 3.619 4.009 4.015 3.615 3.672 3.898 3.959 3.607 3.707 3.978 3.656 4.027 3.645 3.643 3.898 3.635 3.865 3.631 3.929 3.635 3.511 3.539 3.830 3.925 3.971 3.646 3.669 3.931 4.028 3.665 3.681 3.984 3.664 3.893 3.606 3.699 .997 3.936 3.976 3.627 3.536 3.695 3.981 3.587 3.680 3.888 3.921 3.953 3.847 3.645 4.042 3.692 3.910 3.672 3.957 3.961 3.950 3.904 3.928 3.984 3.721 3.927 3.621 4.038 4.047 3.627 3.774 3.983 3.658 4.034 3.778

(a) use 10 classes, construct a frequency distribution.

(b) Draw a histogram of the data.

c)Describe the shape of the distribution represented by the histogram.

Answer 1

This problem is based on the construction of frequency distribution and and construction of histogram:-

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