The table below gives the number of active nurses per 100,000 people in each sta

Question

The table below gives the number of active nurses per 100,000 people in each state. (Data set may be found here.)

(a) Why is the number of nurses per 100,000 people a better measure of the availability of health care than a simple count of the number of nurses in a state?

In contrast to what the question implies, a simple count of nurses per state is best.States with large populations would naturally have more nurses, so the above measure is relative, enabling comparison between states with different populations.    A typical nurse will see 100,000 patients in a month.States with small populations might have a biased appearance of more available health care if we simply measured the number of nurses in each state.A better measure would be the number of nurses relative to the size of the state in square miles.

(b) Make a histogram that displays the distribution of nurses per 100,000 people.

What is the best overall description of the distribution?

Single peaked, symmetricalSingle peaked, skewed to the right    Multiple peaks, with no overall patternSingle peaked, skewed to the left

Are there any outliers? If so, choose the best explanation for them below.

There are outliers coming from the District of Columbia, Massachusetts, and South Dakota, some of which have large medical communities.The outlier comes from Hawaii, which is the only state which is also an island.    There are several outliers, coming from the largest states (Texas, California, etc.).There are no outliers.

NURSES PER 100,000 PEOPLE, BY STATE STATE Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware Florida Georgia Hawaii Idaho NURSES STATE NURSES 1001 712 795 1017 1007 795 1215 894 662 625 912 750 774 938 905 812 1380 NURSES STATE 912 756 Maine 544 774 641 761 994 977 Missouri 814 653 Nebraska 753 642 New Hampshire 970 812 New Jersey 864 New Mexico 990 867 North Carolina 923 North Dakota 894 Ohio 1053 869 Oregon 1210 841 Rhode Island 1017 South Carolina 868 South Dakota 958 Tennessee 748 Texas 1010 Utah 574 Vermont Louisiana Maryland Massachusetts Michigan Minnesota Mississippi Pennsylvania Montana Nevada llinoIS Indiana Iowa Kansas 907 Washington 580 West Virginia 859 886 Wyoming 1097 Dist. of Columbia New York Wisconsin Kentucky

Explanation / Answer

The correct histogram is B as can be seen from the data.

Description-Single peaked, skewed to the right

There are outliers coming from the District of Columbia, Massachusetts, and South Dakota, some of which have large medical communities

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