Method of least square ,the following 

call deviations from its average squared and summed [(x; - x)2] is 1,450. Required: Using the method of least squares, estimate the total cost of travel and enter- tainment for a week in which the company's sales personnel make 200 sales calls. Method of Least Squares. The following data were collected for the most recent twelve- month period by the cost accountant in one of Richardson Company's manufacturing plants. Electricity Month January...... February ...... March...... April........ May ..... June.... July....... August........ September October... November ...... December Machine Cost Hours $1,600 2,790 1,510 2,680 1,500 2,600 1,450 2,500 1,460 2,510 1,520 2,610 1,570 2,750 1,530 2,700 1,480 2,530 1,470 2,520 1,450 2,490 1,460 2,520 Required: Using the method of least squares, compute the fixed cost and the variable cost rate for electricity cost. Round estimates to the nearest cent. Correlation Analysis. The controller of Yazoo Electronic Company would like to know how closely the incurrence of factory overhead in the company's Semiconducto