Question

1. A social psychologist conducting a study of the relation between income and generosity observed the amount of money given to a panhandler and determined the wealth of the giver by a rating of the clothing worn. The results for the first four people observed were as follows. (data are fictional) Participant Wealth of Giver Dollars Given 4 3 2 7 A B C 4 6 8 2 What is the correlation coefficient (Pearson's r) describing the relationship between the two variables in the above scenario? Choose the closest option. A)-1 C) 0 E) 1 B) - 5 D.S 2. What is the correct decision using the .05 level of significance? A) Reject Null C) Null proven true B) Fall to reject null D) Null proven false 3. If the relationship was statistically significant at the .05 level, describe the relationship between the two variables. A) no statistically significant linear association B) high scores on one variable are associated with high scores on the other C) low scores on one variable are associated with high scores on the other D) there is a significant relationship, but no way to determine the direction or type 4. What is the correct decision using the .01 level of significance? A) Reject Null C) Null proven true B) Fail to reject null D) Null proven false 5. What is the correct decision using the .001 level of significance? A) Reject Null C) Null proven true B) Fail to reject null D) Null proven false

Answer 1

Q1) A (calculation gives r= -4.6188)

Q2) A (a test for significance for zero correlation gives p-value = 0.04382)

Q3)C

Q4) B

Q5) B