True or false: A correlation analysis test the association between two continuous variables.
A. True
B. False
Answer A. True
The correlation coefficient is a measure of the degree of linear association between two continuous variables.
And the correlation analysis test the association between two continuous variables.
True or false: A correlation analysis test the association between two continuous variables. A. True B....
Covariance and correlation between two variables are reported in the same units. True False
A correlation tests whether differences exist between two variables. Question 1 options: a) True b) False Question 2 (1 point) You have tested to find whether a relationship exists between hours of sleep the night before an exam and grade on the exam. You have a participant pool of n = 30, df = 28. Your hypothesis is that a significant relationship will exist, where those with more hours of sleep receive higher grades on the exam. This is a...
r2 = 16% indicates that there is a significant, positive correlation of 0.4 between two continuous variables. True or False?
r2 = 16% indicates that there is a significant, positive correlation of 0.4 between two continuous variables. True False.
True/False. Correlation is the best analysis to use if your independent and dependent variables are nominal. True False
1. Which of the following is correct? A. In correlation analysis there are two variables and both are dependent B. I n correlation analysis there are two variables and both are independent C. I n regression analysis there are two variables and both are dependent D: In regression analysis there are two variables and both are independent 2. measures the strength of linear association between two variables. A. Regressor B. Regressand C. Correlation coefficient D. None 3. the independent variables....
Consider a two-dimensional scatterplot representing the relationship between two continuous variables. If the correlation coefficient is -1, then: a. All points lie in a straight line with a slope of -1. b. All points lie in a straight line with an unknown negative slope. c. All points do not lie in a straight line but the best fitting regression line has a slope of -1. d. There is a strong positive relationship between the two variables.
QUESTION 3 True/False. The university study found a positive correlation between the number of weekly course log-ins and end of course evaluation scores, r = .16, p = .07. Based on this, it could be concluded that there is significant association between number of log-ins and end of course evaluation scores. True False 10 points QUESTION 4 The correlational finding that test anxiety increases grades decrease is an example of which of the following? A negative correlation. A positive...
If correlation coefficient between two random variables is zero, then it can be certain that they are also independent True False
Researchers are interested in finding out if there is a negative linear association between the number of hours a woman exercises during pregnancy and the length of her labor. Assume data was collected and they found a correlation of -0.246. Using this information, they calculated a p-value of 0.140. Determine whether each of the statements below is true or false: [Choose ] The correlation of -0.246 would be very unlikely to see if there was in fact no linear association...