Question

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.

Answer 1