National health care is currently a big issue for Americans. The October 21, 2009, USA Today article “Poll: Americans skittish over health care changes” reported the following percentages with respect to “Insurance company requirements you have to meet to get certain treatments covered” if a health care bill passes:
One month later, during October 16–19, another poll was taken of 1521 adults. Those viewpoints are categorized in the table below.
At the 0.05 level of significance, did the distributions of viewpoints change significantly from September 2009 to October 2009?
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