4. A sample of heights in feet of active volcanoes in North America, outside of Alaska, is listed below. Is there sufficient evidence that the standard deviation in heights of volcanoes outside of Alaska is less than the standard deviation in heights of Alaskan volcanoes which is 2385.9 feet? a = 0.05 10,777 8159 11,240 10,456 14,163 8,363

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