Ramona measures how positive a person’s mood is and how creative he or she is and predicts that there is a relationship. She obtained the following interval scores: Mood ( X ) Creativity ( Y ) 10 7 8...



  1. Ramona measures how positive a person’s mood is and how creative he or she is and predicts that there is a relationship. She obtained the following interval scores:

















































Mood (X)Creativity (Y)
107
86
911
64
55
37
74
25
46
14




    • Compute the correlation coefficient.

    • What are H0
      and Ha?

    • With α = 0.05, what is
      r
      crit?

    • What should she conclude about this relationship?

    • Calculate the proportion of variance accounted for.





Jun 03, 2022
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