36. A researcher wants to examine if there is a correlation between number of work hours per week and academic performance in a sample of n = 150 undergraduate students. What will be the null hypothesis, if she plans to use a two-tailed Person’s correlation test in data analysis?
A. There is a significant correlation between number of work hours per week and academic performance in the population of undergraduate students.
B. There is a significant positive correlation between number of work hours per week and academic performance in the sample of undergraduate students.
C. There is a significant correlation between number of work hours per week and academic performance in the sample of undergraduate students.
D. There is no correlation between number of work hours per week and academic performance in the sample of undergraduate students.
E. There is no correlation between number of work hours per week and academic performance in the population of undergraduate students.
F. There is a significant positive correlation between number of work hours per week and academic performance in the population of undergraduate students.
37. A researcher wants to examine if there is a correlation between number of work hours per week and academic performance in a sample of n = 150 undergraduate students. What will be the alternative hypothesis, if he plans to use a two-tailed Person’s correlation test in data analysis?
A. There is a significant positive correlation between number of work hours per week and academic performance in the population of undergraduate students.
B. There is no correlation between number of work hours per week and academic performance in the population of undergraduate students.
C. There is a significant correlation between number of work hours per week and academic performance in the sample of undergraduate students.
D. There is a significant positive correlation between number of work hours per week and academic performance in the sample of undergraduate students.
E. There is no correlation between number of work hours per week and academic performance in the sample of undergraduate students.
F. There is a significant correlation between number of work hours per week and academic performance in the population of undergraduate students.
38. If a researcher found a Person’s correlation r = 0.35 between emotional resilience and academic performance in a sample of n = 32 undergraduate students than he should conclude that ______________________ (assume 2-tailed test).
A. there is no significant relationship between these variables with either, p <.05 or p <.01.
B. there is a significant positive relationship between these variables with p <.01 but not with p <.05.
C. there is a significant positive relationship between these variables with p <.05 but not with p <.01.
D. there is a significant positive relationship between these variables with both, p <.05 and p <.01.
39. What would the scatter plot of Pearson’s correlation r = 0.85 between X & Y variables show?
A. The data points widely scattered around the best-fit line that slopes up to the right.
B. The data points clustered close to the best-fit line that slopes up to the right.
C. The data points clustered close to the best-fit line that slopes down to the right.
D. The data points widely scattered around the best-fit line that slopes down to the right.
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