The irs is concerned with improving the accuracy of tax information given by its representatives over the telephone. previous studies involved asking a set of 25 questions of a large number of irs telephone representatives to determine the proportion of correct responses. historically, the average proportion of correct responses has been 70 percent. recently, irs representatives have been receiving more training. on april 26, the set of 25 tax questions were again asked of 20 randomly selected irs telephone representatives. the proportions of correct answers were: 21, 15, 19, 16, 16, 15, 21, 13, 17, 13, 24, 16, 22, 16, 15, 18, 23, 19, 21, and 16.a) what are the upper and lower control limits for the appropriate p-chart for the irs? use z = 3b) is the tax information process in statistical control?

Laurelton heating & cooling installs and services commercial heating and cooling systems. laurelton uses job costing to calculate the cost of its jobs. overhead is allocated to each job based on the number of direct labor hours spent on that job. at the beginning of the current year, laurelton estimated that its overhead for the coming year would be $ 61 comma 500. it also anticipated using 4 comma 100 direct labor hours for the year. in april comma laurelton started and completed the following two jobs: (click the icon to view the jobs.) laurelton paid a $ 20-per-hour wage rate to the employees who worked on these two jobs. read the requirements requirement 1. what is laurelton's predetermined overhead rate based on direct labor hours? determine the formula to calculate laurelton's predetermined overhead rate based on direct labor hours, then calculate the rate. / = predetermined overhead rate