document.write( "Question 740449: 12. Four research participants take a test of manual dexterity (high scores mean better dexterity) \n" );
document.write( "and an anxiety test (high scores mean more anxiety). The scores are as follows.\r \n" );
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document.write( "Person Dexterity Anxiety \n" );
document.write( "1 1 10 \n" );
document.write( "2 1 8 \n" );
document.write( "3 2 4 \n" );
document.write( "4 4 -2\r \n" );
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document.write( "For problems 12 to 14, do the following: (a) Make a scatter diagram of the \n" );
document.write( "scores; (b) describe in words the general pattern of correlation, if any; (c) figure \n" );
document.write( "the correlation coefficient; (d) figure whether the correlation is statistically significant \n" );
document.write( "(use the .05 significance level, two-tailed); (e) explain the logic of what \n" );
document.write( "you have done, writing as if you are speaking to someone who has never heard \n" );
document.write( "of correlation (but who does understand the mean, deviation scores, and hypothesis \n" );
document.write( "testing); and (f) give three logically possible directions of causality, indicating \n" );
document.write( "for each direction whether it is a reasonable explanation for the correlation \n" );
document.write( "in light of the variables involved (and why). \n" );
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