Mary Ellis owns a small manufacturing company and would like to develop more accurate estimates for overhead expenses when making planning decisions. She is pretty sure that overhead is a mixed cost that varies with direct labour-hours but she would like to do a proper analysis to determine the variable and fored components. She collected the following information for the past 12 months on direct labour hours incurred and total overhead expenses Required: 1. Using the leastsquares regression method, estimate the variable oveimead cont per direct labour-hour and the total fixed overherad cost per month. (Round Fixed cost to the nearest whole dollor amount and the Varinble cost per direst labour hour to 2 dencimal places.) 2. Exprees the cost data detwed in part t above in the form Y=a+bX (Round Fixed cost to the neare whole doliar emount and the Variable cost to 2 decimal placeni) 3. Uning the cost lomula stated in part 2. estimate total overhead costs for a month where direct labeurhours are expected to be 1.000 (found your Varioble cost per direct labor hour to 2 decimal places and round your final answer to the nearest whole doliar nmanine