Company: Infoedge
Difficulty: medium
The correlation between the number of years an employee has worked for the company and the salary of the employee is 0.75. What can be said about the salary and years worked? There is no relationship between salary and years worked. Individuals that have worked longer for the company have higher salaries. Individuals that have worked for the company have lower salaries. Majority of the employees have been with the company for a long time. Let's suppose you want to restructure the definitions for BMI through statistical analysis and thereby predict a man's weight(Y) based on his height(X). The mean height is 71 inches (SD = 3), and the mean weight is 184 kilograms (SD = 2). The correlation between X and Y is 0.75. What is the slope of the regression line obtained? 0.25 1.33 0.50 0.33 If a constant value 5 is subtracted from each observation of a set, the variance is: Reduced by 5 Reduced by 25 Unaltered Increased by 25 The level of significance is the: maximum allowable probability of T