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Home Q & A Board Science-Related Homework Help Psychology Developmental Psychology
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aslocke aslocke
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6 years ago
A researcher finds a .40 correlation between the number of years a student has access to a computer and his or her attitude toward mathematics. The study used 20 subjects. What are the degrees of freedom in this case?
 
  a. 39 c. 19
  b. 38 d. 18

Ques. 2

A researcher wants a 90 percent chance of rejecting the null hypothesis at the one-tailed .05 level with an effect size of .15 . The sample size needed is about
 
  a. 140.
  b. 160.
  c. 180.
  d. 200.
  e. 380
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wrote...
#1
6 years ago
Answer to #1

D

Answer to #2

E
aslocke Author
wrote...
#2
6 years ago
Thank you for helping me with this assignment of mine
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