empt 1 Question 3 (1 point) Cara has done a standard cost variance analysis and is trying to determine what has caused an unfavorable labor efficiency variance of $10,000. Which of the following is the most likely cause of the variance? The maintenance of machinery has been inadequate for these last few months. The quality of raw materials has improved greatly. The new labor contract increased wages. The department manager has chosen to use highly skilled workers. Previous Page Next Page Page 3 of 15