Hi,

I want to find the center of gravity of loaded sea containers.

As the contents and weights are constantly changing from one load to the next, is there a method of simply inputting the measured weights and distances of various (fixed) points beneath the sea container to yield the point of COG.

I have found several samples online but I want to ensure that I am calculating COG correctly.

Xcm = (m1 x X1) + (m2 x X2) + (m3 x X3) (Etc...) / m1 + m2 + m3 (Etc...)

Where m = measured weight at various (fixed) locations of the sea container.
And X = The measured distance from the left hand side of the sea container to various (fixed) locations where the weight was measured.

Also, does increasing the amount of measured locations increase the accuracy of my results?

If yes, can I rely on a calculation which only includes four points of measurement; one at each corner of the sea container?

1. the manager of collins import autos believes the number of cars sold in a day (q) depends on two factors: (1) the number of hours the dealership is open (h) and (2) the number of salespersons working that day (s). after collecting data for two months (53 days), the manager estimates the following log-linear model: q 4 equation 1 a. explain, how to transform the log-linear model into linear form that can be estimated using multiple regression analysis. the computer output for the multiple regression analysis is shown below: q4 table b. how do you interpret coefficients b and c? if the dealership increases the number of salespersons by 20%, what will be the percentage increase in daily sales? c. test the overall model for statistical significance at the 5% significance level. d. what percent of the total variation in daily auto sales is explained by this equation? what could you suggest to increase this percentage? e. test the intercept for statistical significance at the 5% level of significance. if h and s both equal 0, are sales expected to be 0? explain why or why not? f. test the estimated coefficient b for statistical significance. if the dealership decreases its hours of operation by 10%, what is the expected impact on daily sales?