A business consultant wanted to investigate whether providing daycare facilities on the company premises would reduce the absentee rate of working mothers with children aged 6 years or younger she wick a random sample of 35 mothers who work at companies that provide daycare facilities on the premises and found that mothers missed an average of 4.2 days from work last year with a standard deviation of 3.70 days She took random sample of 40 mothers working at companies that do not provide daycare facilities and found that these mothers missed an average of 75 days last year with a standard deviation of to 65 days, construct a 90% confidence interval for the difference in the true mean number of days missed for the two populations, what is the margin of error for the above scenario?