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Consumer Reports magazine tested large Plasma TV's

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Plasma TV's

Consumer Reports magazine tested large Plasma TV's. The table below shows the rankings of TV's by overall quality score and cost. High values are given low ranks, so the TV with a quality rank of 1 is the TV with the highest quality score, and a TV given a cost rank of 1 is the most expensive. Test for a correlation. Based on these results, can you expect to get higher quality by purchasing a more expensive plasma TV?

Quality

1 2 3 4 5 6 7 8 9 10

Cost

2 3 6 1 10 4 9 5 8 7

(i) Test statistic Rs

(ii) Critical values:

(iii) Conclusion on H0:

(iv) Interpret the results according to the problem.

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The expert examines consumer reports magazine tested large Plasma TV's.

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Consumer Reports magazine tested large Plasma TV's. The table below shows the rankings of TV's by overall quality score and cost. High values are given low ranks, so the TV with a quality rank of 1 is the TV with the highest qaulity score, and a TV given a cost rank of 1 ...

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