1. [7 points] A small university is trying to monitor its electricity usage. For a random sample of 60 weekdays, (Monday - Friday), the student center used an average of 112.63 kWh with standard deviation 32.07. For a random sample of 30 weekend days (Saturdays and Sundays), the student center used an average of 94.26 kilowatt hours (kWh) with standard deviation 43.29. Construct a 95% confidence interval for the difference in mean electricity use at the student center between weekdays and weekend days. Round your margin of error to three decimal places. Remember to interpret the confidence interval in the context of the