Question: The government is interested in changes in research and development expend itures in the past decade. They randomly select 8 large manufacturing com panies and

The government is interested in changes in research and development expend¬

itures in the past decade. They randomly select 8 large manufacturing com¬

panies and collect the following data on expenditures on research and develop¬

ment (in units of $100,000):

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