A worker wants to find the relationship between the total number of training hours "x" and the number of items repaired
Posted: Wed May 11, 2022 7:42 pm
A worker wants to find the relationship between the total number
of training hours "x" and the number of items repaired
by one person every week "y".
A) Fit a simple linear regression model between x and y by
finding out the estimates of the intercept and slope
B) Find the correlation coefficient, the R value. Comment on the
strength of the linear relationship between x and y.
C) Find the total sum of squared total (SST), the sum of squares
due to regression (SSR), and the sum of squares due to error
(SSE).
D) Make a prediction of the number of items repaired every week
by a person (his training hour is 10).
n = 12, x = 4, y = 4 n n n Σκ? = 232, XiYi 318, y? = 1025 = i=1 i=1 i=1
of training hours "x" and the number of items repaired
by one person every week "y".
A) Fit a simple linear regression model between x and y by
finding out the estimates of the intercept and slope
B) Find the correlation coefficient, the R value. Comment on the
strength of the linear relationship between x and y.
C) Find the total sum of squared total (SST), the sum of squares
due to regression (SSR), and the sum of squares due to error
(SSE).
D) Make a prediction of the number of items repaired every week
by a person (his training hour is 10).
n = 12, x = 4, y = 4 n n n Σκ? = 232, XiYi 318, y? = 1025 = i=1 i=1 i=1