Question: =+a Use the signed-rank test to determine whether Japan spends a larger percentage than the United States on R&D. b Determine whether there is a

=+ðaÞ Use the signed-rank test to determine whether Japan spends a larger percentage than the United States on R&D.

ðbÞ Determine whether there is a significant positive relationship between percentages spent by Japan and the United States (two different methods).

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