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 took 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 3.78 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 7.8 days last year with a standard deviation of 10.65 days. Construct a 98% confidence interval for the difference in the true mean number of days missed for the two populations. What is the standard error for the above scenario?
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 took 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 3.78 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 7.8 days last year with a standard deviation of 10.65 days. Construct a 98% confidence interval for the difference in the true mean number of days missed for the two populations. What is the standard error for the above scenario?
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