A company wants to study the relationship between an employee’s length of employment and their number of workdays absent. The company collected the following information on a random sample of seven employees.
Number of workdays absent 2, 3, 3, 5, 7, 7, 8
Length of employment 5, 6, 9, 4, 2, 2, 0
a) what is the independent variable (x)?
(b)what is the least squares equation for the data?
(c) what is the correlation coefficient?
(d) what is the estimated number of absences for an employee who has been employed for three years?
(e) what is the coefficient of determination?
In a two-way ANOVA, the sources of variation are???
a) total variation and error variation
B) total variation, treatment variation, and error variation.
C) total variation, treatment variation, blocking variation and error variation.
D) Treatment variation and blocking variation