In 1955, a magazine reported that women worked, on average, 80 hours per week. recently, research has been investigating whether or not the women’s movement has, in fact, been accompanied by an increase in the average work week for women (combining employment outside the home and work in the home). the population standard deviation is known to be 12 hours. suppose a college student conducts a study to determine if the mean work week has increased, randomly sampling 80 women. the sample mean was 83 hours per week with a sample standard deviation of 10.does it appear that the mean work week has increased for women at the 5% level?